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diff --git a/.gitignore.copy b/.gitignore.copy
new file mode 100644
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--- /dev/null
+++ b/.gitignore.copy
@@ -0,0 +1,11 @@
+.gitignore
+main.py
+*.swp
+__pycache__
+*pyc
+*pyo
+*txt
+*swp
+*bak
+*rej
+*orig
diff --git a/COPYING b/COPYING
new file mode 100644
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--- /dev/null
+++ b/COPYING
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
diff --git a/README b/README
new file mode 100644
index 0000000..ecb69fc
--- /dev/null
+++ b/README
@@ -0,0 +1,12 @@
+Python 101
+==========
+
+This repository carries a series of exercices I did to learn Python.
+
+The subjects are not included from py00 to py05, after that, I tried to include
+a Docstring that explains what the subject asked us, the students.
+
+License
+-------
+
+See COPYING.
diff --git a/py00/ex0/ft_hello_garden.py b/py00/ex0/ft_hello_garden.py
new file mode 100644
index 0000000..9885c07
--- /dev/null
+++ b/py00/ex0/ft_hello_garden.py
@@ -0,0 +1,2 @@
+def ft_hello_garden():
+    print("Hello, Garden Community!")
diff --git a/py00/ex1/ft_garden_name.py b/py00/ex1/ft_garden_name.py
new file mode 100644
index 0000000..a0259b5
--- /dev/null
+++ b/py00/ex1/ft_garden_name.py
@@ -0,0 +1,4 @@
+def ft_garden_name():
+    var = input("Enter garden name: ")
+    print("Garden: " + var)
+    print("Status: Growing well!")
diff --git a/py00/ex2/ft_plot_area.py b/py00/ex2/ft_plot_area.py
new file mode 100644
index 0000000..1ea6d1a
--- /dev/null
+++ b/py00/ex2/ft_plot_area.py
@@ -0,0 +1,6 @@
+def ft_plot_area():
+    length = input("Enter length: ")
+    length = int(length)
+    width = input("Enter width: ")
+    width = int(width)
+    print("Plot area: ", length * width)
diff --git a/py00/ex3/ft_harvest_total.py b/py00/ex3/ft_harvest_total.py
new file mode 100644
index 0000000..d01db24
--- /dev/null
+++ b/py00/ex3/ft_harvest_total.py
@@ -0,0 +1,5 @@
+def ft_harvest_total():
+    one = int(input("Day 1 harvest: "))
+    two = int(input("Day 2 harvest: "))
+    three = int(input("Day 3 harvest: "))
+    print("Total harvest :", one + two + three)
diff --git a/py00/ex4/ft_plant_age.py b/py00/ex4/ft_plant_age.py
new file mode 100644
index 0000000..b2d645b
--- /dev/null
+++ b/py00/ex4/ft_plant_age.py
@@ -0,0 +1,6 @@
+def ft_plant_age():
+    age = int(input("Enter plant age in days: "))
+    if age > 60:
+        print("Plant is ready to harvest!")
+    else:
+        print("Plant needs more time to grow.")
diff --git a/py00/ex5/ft_water_reminder.py b/py00/ex5/ft_water_reminder.py
new file mode 100644
index 0000000..2f456ed
--- /dev/null
+++ b/py00/ex5/ft_water_reminder.py
@@ -0,0 +1,6 @@
+def ft_water_reminder():
+    day = int(input("Days since last watering: "))
+    if day > 2:
+        print("Water the plants!")
+    else:
+        print("Plants are fine")
diff --git a/py00/ex6/ft_count_harvest_iterative.py b/py00/ex6/ft_count_harvest_iterative.py
new file mode 100644
index 0000000..23c6657
--- /dev/null
+++ b/py00/ex6/ft_count_harvest_iterative.py
@@ -0,0 +1,5 @@
+def ft_count_harvest_iterative():
+    count = int(input("Days until harvest: "))
+    for i in range(1, count + 1, + 1):
+        print("Days ", i)
+    print("Harvest time!")
diff --git a/py00/ex6/ft_count_harvest_recursive.py b/py00/ex6/ft_count_harvest_recursive.py
new file mode 100644
index 0000000..f25372b
--- /dev/null
+++ b/py00/ex6/ft_count_harvest_recursive.py
@@ -0,0 +1,14 @@
+def ft_print_days(days, count):
+    if days > 0:
+        print("Day:", count)
+        count += 1
+        days -= 1
+        ft_print_days(days, count)
+    else:
+        print("Harvest time!")
+
+
+def ft_count_harvest_recursive():
+    days = int(input("Days until harvest: "))
+    count = 1
+    ft_print_days(days, count)
diff --git a/py00/ex7/ft_seed_inventory.py b/py00/ex7/ft_seed_inventory.py
new file mode 100644
index 0000000..5c76e0e
--- /dev/null
+++ b/py00/ex7/ft_seed_inventory.py
@@ -0,0 +1,10 @@
+def ft_seed_inventory(seed_type: str, quantity: int, unit: str) -> None:
+    seed_type = seed_type.capitalize()
+    if unit == "packets":
+        print(seed_type + " seeds: " + str(quantity) + " packets available")
+    elif unit == "grams":
+        print(seed_type + " seeds: " + str(quantity) + " grams total")
+    elif unit == "area":
+        print(seed_type + " seeds: covers " + str(quantity) + " square meters")
+    else:
+        print("Unknown unit type")
diff --git a/py01/ex0/ft_garden_intro.py b/py01/ex0/ft_garden_intro.py
new file mode 100755
index 0000000..a8f45b7
--- /dev/null
+++ b/py01/ex0/ft_garden_intro.py
@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+
+
+def ft_garden_name() -> None:
+    print("=== Welcome to My Garden ===")
+    name = "Rose"
+    height = "25cm"
+    age = "30 days"
+    print("Plant: " + name)
+    print("Height: " + height)
+    print("Age: " + age)
+    print("=== End of Program === ")
+
+
+if __name__ == "__main__":
+    ft_garden_name()
diff --git a/py01/ex1/ft_garden_data.py b/py01/ex1/ft_garden_data.py
new file mode 100755
index 0000000..e5d8485
--- /dev/null
+++ b/py01/ex1/ft_garden_data.py
@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+
+
+# Create a class
+class Plant:
+    def __init__(self: 'Plant', name: str, height: float, age: int) -> None:
+        self.name = name
+        self.height = height
+        self.age = age
+
+# Method to grow the age
+    def grow_age(self: 'Plant') -> None:
+        self.age += 1
+
+# Method to grow the height
+    def grow_height(self: 'Plant') -> None:
+        self.height *= 1.04
+
+# Method to show the plant information
+    def show(self: 'Plant') -> None:
+        print(self.name + ": " + str(round(self.height, 1)) + "cm, "
+              + str(self.age) + " days old")
+
+
+print("=== Garden Plant Registry ===")
+
+
+def ft_garden_data() -> None:
+    Params = [("Rose", 25, 30), ("Sunflower", 80, 45), ("Cactus", 15, 120)]
+    for param in Params:
+        Plant(*param).show()
+
+
+if __name__ == "__main__":
+    ft_garden_data()
diff --git a/py01/ex2/ft_plant_growth.py b/py01/ex2/ft_plant_growth.py
new file mode 100755
index 0000000..c516181
--- /dev/null
+++ b/py01/ex2/ft_plant_growth.py
@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+
+# Create a class
+class Plant:
+    def __init__(self: 'Plant', name: str, height: float, age: int) -> None:
+        self.name_is = name
+        self.height_is = height
+        self.age_is = age
+
+# Method to grow the age
+    def age(self: 'Plant') -> None:
+        self.age_is += 1
+
+# Method to grow the height
+    def grow(self: 'Plant') -> None:
+        self.height_is *= 1.04
+
+# Method to show the plant information
+    def show(self: 'Plant') -> None:
+        print(f" {self.name_is}: {str(round(self.height_is, 1))}cm,"
+              f"{str(self.age_is)} days old")
+
+
+rose = Plant("Rose", 25, 30)
+
+
+def ft_garden_growth(plant: Plant) -> None:
+    print("=== Garden Plant Growth ===")
+    plant.show()
+    start = plant.height_is
+    count = 7
+    for i in range(1, count + 1):
+        print("=== Day " + str(i) + " ===")
+        plant.age()
+        plant.grow()
+        plant.show()
+    print("Growth this week: " + str(round(plant.height_is - start, 1)) + "cm")
+
+
+if __name__ == "__main__":
+    ft_garden_growth(rose)
diff --git a/py01/ex3/ft_plant_factory.py b/py01/ex3/ft_plant_factory.py
new file mode 100755
index 0000000..15669af
--- /dev/null
+++ b/py01/ex3/ft_plant_factory.py
@@ -0,0 +1,43 @@
+#!/usr/bin/env python3
+
+
+# Create a class
+class Plant():
+
+    def __init__(self: 'Plant', name: str, height: float, age: int) -> None:
+        self.name_is = name
+        self.height_is = height
+        self.age_is = age
+
+# Method to grow the age
+    def age(self: 'Plant') -> None:
+        self.age_is += 1
+
+# Method to grow the height
+    def height(self: 'Plant') -> None:
+        self.height_is *= 1.04
+
+# Method to show the plant information
+    def show(self: 'Plant') -> None:
+        print(self.name_is + ": " + str(round(self.height_is, 1)) + "cm, "
+              + str(self.age_is) + " days old")
+
+
+Params = [("Rose", 25, 30),
+          ("Oak", 200, 365),
+          ("Cactus", 5, 90),
+          ("Sunflower", 80, 45),
+          ("Fern", 15, 120)]
+
+
+def ft_plant_factory() -> None:
+    print("=== Plant Factory Output ===")
+    for param in Params:
+        obj = Plant(param[0], param[1], param[2])  # instantiate the object
+        # obj = Plant(*param) # instantiate the object and unpack with *
+        print("Created: ", end='')
+        obj.show()
+
+
+if __name__ == "__main__":
+    ft_plant_factory()
diff --git a/py01/ex4/ft_garden_security.py b/py01/ex4/ft_garden_security.py
new file mode 100755
index 0000000..ef983b9
--- /dev/null
+++ b/py01/ex4/ft_garden_security.py
@@ -0,0 +1,91 @@
+#!/usr/bin/env python3
+
+
+# Create a class
+class Plant():
+
+    def __init__(self: 'Plant', name: str, height: float, age: int) -> None:
+        if age < 0:
+            print("Plant age cannot be negative.")
+            print("Plant age rejected.")
+            print("Plant age was set to 0.")
+            self.name_is = name
+            self._height_is = height
+            self._age_is = 0
+        if height < 0:
+            print("Plant height cannot be negative.")
+            print("Plant height rejected.")
+            print("Plant height was set to 0.")
+            self.name_is = name
+            self._height_is = 0
+            self._age_is = age
+        if height > 0 and age > 0:
+            self.name_is = name
+            self._height_is = height
+            self._age_is = age
+
+# Method to grow the age
+    def grow_age(self: 'Plant') -> None:
+        self._age_is += 1
+
+# Method to grow the height
+    def grow_height(self: 'Plant') -> None:
+        self._height_is *= 1.04
+
+# Getter methods to access private properties
+    def get_age(self: 'Plant') -> int:
+        return self._age_is
+
+    def get_height(self: 'Plant') -> float:
+        return self._height_is
+
+# Setter methods to modify properties
+    def set_age(self: 'Plant', age: int) -> None:
+        if age > 0:
+            self._age_is = age
+            print("Plant age was updated.")
+        else:
+            print("Plant age cannot be negative.")
+            print("Plant age rejected.")
+
+    def set_height(self: 'Plant', height: float) -> None:
+        if height > 0:
+            self._height_is = round(height)
+            print("Plant height was updated.")
+        else:
+            print("Plant height cannot be negative.")
+            print("Plant height rejected.")
+
+# Method to show the plant information
+    def show(self: 'Plant') -> None:
+        print(self.name_is + ": " + str(self.get_height()) + "cm, "
+              + str(self.get_age()) + " days old")
+
+
+def ft_plant_security() -> None:
+    print("=== Garden Security System ===")
+    rose = Plant("Rose", -10, 5)
+    print("Plant created: ", end='')
+    rose.show()
+    print()
+    new_age = 10
+    new_height = 50
+    print(f"Trying to update height to {new_height} and age to {new_age}...")
+    print()
+    rose.set_height(new_height)
+    rose.set_age(new_age)
+    print()
+    print("Current state: ", end='')
+    rose.show()
+    print()
+    print("Updating height to 15 and age to 20...")
+    print()
+    rose.set_height(15)
+    rose.set_age(20)
+    print()
+    print("Current state: ", end='')
+    rose.show()
+
+
+if __name__ == "__main__":
+    ft_plant_security()
diff --git a/py01/ex5/ft_plant_types.py b/py01/ex5/ft_plant_types.py
new file mode 100755
index 0000000..d306117
--- /dev/null
+++ b/py01/ex5/ft_plant_types.py
@@ -0,0 +1,131 @@
+#!/usr/bin/env python3
+
+# Create a class
+class Plant():
+
+    def __init__(self: 'Plant', name: str, height: float, age: int) -> None:
+        self.name_is = name
+        self._height_is = height
+        self._age_is = age
+
+# Method to grow the age
+    def age(self: 'Plant') -> None:
+        self._age_is += 1
+
+# Method to grow the height
+    def grow(self: 'Plant') -> None:
+        self._height_is *= 1.02
+
+# Getter methods to access private properties
+    def get_age(self: 'Plant') -> int:
+        return self._age_is
+
+    def get_height(self: 'Plant') -> float:
+        return self._height_is
+
+# Setter methods to modify properties
+    def set_age(self: 'Plant', age: int) -> None:
+        if age > 0:
+            self._age_is = age
+            print("Plant age was updated.")
+        else:
+            print("Plant age cannot be negative.")
+
+    def set_height(self: 'Plant', height: int) -> None:
+        if height > 0:
+            self._height_is = round(height)
+            print("Plant height was updated.")
+        else:
+            print("Plant height cannot be negative.")
+
+# Method to show the plant information
+    def show(self: 'Plant') -> None:
+        print(self.name_is + ": " + str(round(self.get_height(), 1)) + "cm, "
+              + str(self.get_age()) + " days old")
+
+
+class Flower(Plant):
+
+    def __init__(self: 'Flower', name: str, height: int,
+                 age: int, color: str) -> None:
+        super(). __init__(name, height, age)
+        self.color_is = color
+        self.isblooming = 0
+
+    def bloom(self: 'Flower') -> None:
+        self.isblooming = 1
+
+    def show(self: 'Flower') -> None:
+        super().show()
+        print(f" Color: {self.color_is}")
+        if self.isblooming == 1:
+            print(self.name_is + " is blooming beautifully!")
+        else:
+            print(self.name_is + " has not bloomed yet")
+
+
+class Tree(Plant):
+
+    def __init__(self: 'Tree', name: str, height: int, age: int,
+                 trunk_diameter: int) -> None:
+        super(). __init__(name, height, age)
+        self.trunk_diameter_is = trunk_diameter
+        self.is_producing_shade = 0
+
+    def produce_shade(self: 'Tree') -> None:
+        self.is_producing_shade = 1
+        print(self.name_is + " now produces a shade of "
+              + str(self.get_height())
+              + "cm long and "
+              + str(round(self.trunk_diameter_is, 1))
+              + "cm wide.")
+
+    def show(self: 'Tree') -> None:
+        super().show()
+
+        print(f" Trunk diameter: {self.trunk_diameter_is}cm")
+
+
+class Vegetable(Plant):
+
+    def __init__(self: 'Vegetable', name: str, height: int, age: int,
+                 harvest_season: str, nutritional_value: int) -> None:
+        super(). __init__(name, height, age)
+        self.harvest_season_is = harvest_season
+        self.nutritional_value_is = nutritional_value
+
+    def update_nutritional_value(self: 'Vegetable') -> None:
+        self.nutritional_value_is = 20
+
+    def show(self: 'Vegetable') -> None:
+        super().show()
+
+        print(f" Harvest season: {self.harvest_season_is}")
+        if self.get_age() >= 20:
+            self.update_nutritional_value()
+        print(f" Nutritional value: {self.nutritional_value_is}")
+
+
+if __name__ == "__main__":
+
+    print("=== Garden Plant Types ===")
+    print("=== Flower")
+    rose = Flower("Rose", 5, 15, "red")
+    rose.show()
+    print("[asking the rose to bloom]")
+    rose.bloom()
+    rose.show()
+    print("=== Tree")
+    oak = Tree("Oak", 200, 365, 5)
+    oak.show()
+    print("[asking the oak to produce shade]")
+    oak.produce_shade()
+    print("=== Vegetable")
+    tomato = Vegetable("Tomato", 5, 10, "April", 0)
+    tomato.show()
+    print("[make tomato grow and age for 20 days]")
+    for _ in range(20):
+        tomato.age()
+        tomato.grow()
+    tomato.update_nutritional_value()
+    tomato.show()
diff --git a/py01/ex6/ft_garden_analytics.py b/py01/ex6/ft_garden_analytics.py
new file mode 100755
index 0000000..8cd7ef0
--- /dev/null
+++ b/py01/ex6/ft_garden_analytics.py
@@ -0,0 +1,227 @@
+#!/usr/bin/env python3
+
+
+# Create a class
+class Plant():
+
+    # Create attributes of class Plant
+    def __init__(self: 'Plant', name: str, height: float, age: int) -> None:
+        if not all([name, age, height]):
+            self.anon()
+        else:
+            self.name_is = name
+            self._height_is = height
+            self._age_is = age
+            # instantiating an object of Stat by append brackets to Stat
+            self.stat = self.Stat()
+
+    # if None is passed as a parameter
+    def anon(self: 'Plant') -> None:
+        self.name_is = "Unknown plant"
+        self._height_is = 0
+        self._age_is = 0
+        self.stat = self.Stat()
+
+# Create a nested class
+    class Stat:
+        def __init__(self) -> None:
+            # objects attributes
+            self._age_counter = 0
+            self._grow_counter = 0
+            self._show_counter = 0
+            self.produce_shade_counter = 0
+
+        def counter(self) -> None:
+            self._age_counter += 1
+            self._grow_counter += 1
+            self._show_counter += 1
+            self.produce_shade_counter += 1
+
+        # Method to grow the age
+    def age(self: 'Plant') -> None:
+        self._age_is += 1
+        self.stat._age_counter += 1
+
+# Method to grow the height
+    def grow(self: 'Plant') -> None:
+        self._height_is *= 1.02
+        self.stat._grow_counter += 1
+
+# Getter methods to access private properties
+    def get_age(self: 'Plant') -> int:
+        return self._age_is
+
+    def get_height(self: 'Plant') -> float:
+        return self._height_is
+
+# Setter methods to modify properties
+    def set_age(self: 'Plant', age: int) -> None:
+        if age > 0:
+            self._age_is = age
+            print("Plant age was updated.")
+        else:
+            print("Plant age cannot be negative.")
+
+    def set_height(self: 'Plant', height: int) -> None:
+        if height > 0:
+            self._height_is = round(height)
+            print("Plant height was updated.")
+        else:
+            print("Plant height cannot be negative.")
+
+    # static method does not take object
+    @staticmethod
+    def check_age(a) -> bool:
+        return a >= 365
+
+    # Method to show the plant information
+    def show(self: 'Plant') -> None:
+        print(f" {self.name_is}: {str(round(self.get_height(), 1))}cm,"
+              f" {str(self.get_age())} days old")
+        self.stat._show_counter += 1
+
+    @classmethod
+    def create_anonymous(cls) -> 'Plant':
+        return cls("Unknown plant", 0, 0)
+
+
+def show(stat) -> None:
+    print(f" Stats: {stat._grow_counter} grow,",
+          f"{stat._age_counter} age,",
+          f"{stat._show_counter} show")
+
+
+class Flower(Plant):
+
+    def __init__(self: 'Flower', name: str, height: int,
+                 age: int, color: str) -> None:
+        super(). __init__(name, height, age)
+        # attributes
+        self.color = color
+        self.isblooming = 0
+
+    def bloom(self: 'Flower') -> None:
+        self.isblooming = 1
+
+    def show(self: 'Flower') -> None:
+        super().show()
+        print(f" Color: {self.color}")
+        if self.isblooming == 1:
+            print(f" {self.name_is}  is blooming beautifully!")
+        else:
+            print(f" {self.name_is} has not bloomed yet")
+
+
+class Seed(Flower):
+    def __init__(self: 'Seed', name: str, height: int,
+                 age: int, color: str) -> None:
+        super(). __init__(name, height, age, color)
+        self.color = color
+        self.has_seed = 0
+
+    def show(self: 'Seed') -> None:
+        super().show()
+        if self.isblooming == 1:
+            self.has_seed = 42
+            print(f" Seeds: {self.has_seed}")
+        else:
+            print(" Seeds: 0")
+
+
+class Tree(Plant):
+
+    def __init__(self: 'Tree', name: str, height: int,
+                 age: int, trunk_diameter: int) -> None:
+        super(). __init__(name, height, age)
+        self.trunk_diameter = trunk_diameter
+        self.is_producing_shade = 0
+
+    def produce_shade(self: 'Tree') -> None:
+        self.is_producing_shade = 1
+        self.stat.produce_shade_counter += 1
+        print(f" {self.name_is} now produces a shade of,",
+              f"{str(self.get_height())}cm long",
+              f"and {str(round(self.trunk_diameter, 1))}cm wide.")
+
+    def show(self: 'Tree') -> None:
+        super().show()
+
+        print(f" Trunk diameter: {self.trunk_diameter}cm")
+
+    def stats(self: 'Tree') -> None:
+        print(f" Stats: {self.stat._grow_counter} grow,",
+              f"{self.stat._age_counter} age,",
+              f"{self.stat._show_counter} show,",
+              f"{self.stat.produce_shade_counter} shade")
+
+
+class Vegetable(Plant):
+
+    def __init__(self: 'Vegetable', name: str, height: int, age: int,
+                 harvest_season: int, nutritional_value: int) -> None:
+        super(). __init__(name, height, age)
+        self.harvest_season_is = harvest_season
+        self.nutritional_value_is = nutritional_value
+
+    def update_nutritional_value(self: 'Vegetable') -> None:
+        self.nutritional_value_is = 20
+
+    def show(self: 'Vegetable') -> None:
+        super().show()
+
+        print(f" Harvest season: {self.harvest_season_is}")
+        if self.get_age() >= 20:
+            self.update_nutritional_value()
+        print(f" Nutritional value: {self.nutritional_value_is}")
+
+
+if __name__ == "__main__":
+
+    print("=== Garden Statistics ===")
+    print("=== Check year-old")
+    rose = Flower("Rose", 5, 30, "red")
+    print(" Is 30 days more than a year?",
+          f"-> {Plant.check_age(30)}")
+    rose = Flower("Rose", 5, 400, "red")
+    print(" Is 400 days more than a year?",
+          f"-> {Plant.check_age(444)}")
+    print()
+    print("=== Flower")
+    rose = Flower("Rose", 5, 15, "red")
+    rose.show()
+    print(" [statistics for Rose]")
+    show(rose.stat)
+    print(" [asking the rose to grow and bloom]")
+    rose.bloom()
+    rose.grow()
+    rose.show()
+    print(" [statistics for Rose]")
+    show(rose.stat)
+    print()
+    oak = Tree("Oak", 200, 365, 5)
+    print("=== Tree")
+    oak.show()
+    print(" [statistics for Oak]")
+    oak.stats()
+    print(" [asking the oak to produce shade]")
+    oak.produce_shade()
+    print(" [statistics for Oak]")
+    oak.stats()
+    print()
+    print("=== Seed")
+    sunflower = Seed("Sunflower", 80, 45, "yellow")
+    sunflower.show()
+    print(" [statistics for Sunflower]")
+    show(sunflower.stat)
+    print(" [make sunflower grow, age and bloom]")
+    sunflower.grow()
+    sunflower.bloom()
+    sunflower.age()
+    sunflower.show()
+    show(sunflower.stat)
+    print()
+    print("=== Anonymous")
+    anonymous = Plant.create_anonymous()
+    anonymous.show()
+    print(" [statistics for Unknown plant]")
+    show(anonymous.stat)
diff --git a/py02/ex0/ft_first_exception.py b/py02/ex0/ft_first_exception.py
new file mode 100755
index 0000000..f0c7a7b
--- /dev/null
+++ b/py02/ex0/ft_first_exception.py
@@ -0,0 +1,27 @@
+#!/usr/bin/env python3
+# https://docs.python.org/3/tutorial/errors.html#handling-exceptions
+
+def input_temperature(temp_str: str) -> int:
+    print(f" Input data is '{temp_str}'")
+    tested_value = test_temperature(temp_str)
+    return tested_value
+
+
+def test_temperature(temp):
+    try:
+        temp = int(temp)
+    except ValueError as ve:
+        print(" Caught input_temperature error:", ve)
+    else:
+        print(f" Temperature is now {temp}°C")
+        return temp
+
+
+if __name__ == "__main__":
+    print("=== Garden Temperature ===")
+    print()
+    input_temperature("25")
+    print()
+    input_temperature("abc")
+    print()
+    print(" All tests completed - program didn't crash!")
diff --git a/py02/ex1/ft_raise_exception.py b/py02/ex1/ft_raise_exception.py
new file mode 100755
index 0000000..7f33045
--- /dev/null
+++ b/py02/ex1/ft_raise_exception.py
@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+# https://docs.python.org/3/tutorial/errors.html#handling-exceptions
+
+def input_temperature(temp_str: str) -> int:
+    print(f" Input data is '{temp_str}'")
+    temp = test_temperature(temp_str)
+    return temp
+
+
+def test_temperature(temp):
+    try:
+        temp = int(temp)
+        if temp > 40:
+            raise ValueError(f"{temp}°C is too hot for plants (max 40°C)")
+        elif temp < 0:
+            raise ValueError(f"{temp}°C is too cold for plants (min 0°C)")
+    except ValueError as ve:
+        print(" Caught input_temperature error:", ve)
+    else:
+        print(f" Temperature is now {temp}°C")
+        return temp
+
+
+if __name__ == "__main__":
+    print("=== Garden Temperature ===")
+    print()
+    input_temperature("25")
+    print()
+    input_temperature("abc")
+    print()
+    input_temperature("100")
+    print()
+    input_temperature("-50")
+    print()
+    print(" All tests completed - program didn't crash!")
diff --git a/py02/ex2/ft_different_errors.py b/py02/ex2/ft_different_errors.py
new file mode 100755
index 0000000..cd64d5f
--- /dev/null
+++ b/py02/ex2/ft_different_errors.py
@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+# https://docs.python.org/3/tutorial/errors.html#handling-exceptions
+
+def garden_operation(operation_number):
+    if operation_number == 0:
+        int("abc")
+    elif operation_number == 1:
+        10 / 0
+    elif operation_number == 2:
+        open("/file.txt")
+    elif operation_number == 3:
+        "string" + 3
+    else:
+        print("Operation completed successfully")
+
+
+def test_error_types():
+    print("=== Garden Type Demo ===")
+    for i in range(5):
+        try:
+            print(f"Testing operation {i} ...")
+            garden_operation(i)
+        except ValueError as err:
+            print("Caught ValueError", err)
+        except ZeroDivisionError as err:
+            print("Caught ZeroDivisionError:", err)
+        except FileNotFoundError as err:
+            print("Caught FileNotFoundError:", err)
+        except TypeError as err:
+            print("Caught TypeError:", err)
+        print()
+    return print("All error types tested successfully!")
+
+
+if __name__ == "__main__":
+    test_error_types()
diff --git a/py02/ex3/ft_custom_errors.py b/py02/ex3/ft_custom_errors.py
new file mode 100755
index 0000000..57d5a47
--- /dev/null
+++ b/py02/ex3/ft_custom_errors.py
@@ -0,0 +1,63 @@
+#!/usr/bin/env python3
+
+class GardenError(Exception):
+    def __init__(self, message="Unknown plant error"):
+        self.message = message
+        # Why self.message; why not just 'message'
+        super().__init__(self.message)
+
+
+class PlantError(GardenError):
+    pass
+
+
+class WaterError(GardenError):
+    pass
+
+
+def test_plant_error(veg_item):
+    if veg_item not in veg_list:
+        raise PlantError(f"The {veg_item} is not in the list!")
+    else:
+        print("The vegetale is in the list")
+
+
+def test_water_error(level):
+    if level < 10:
+        raise WaterError("Not enough water in the tank!")
+    else:
+        print("We have enough water!")
+
+
+def main():
+    print("== Custom Garden Errors Demo")
+    print()
+    try:
+        print("Testing PlantError...")
+        test_plant_error("spinach")
+    except PlantError as err:
+        print("Caught PlantError:", err)
+        print()
+    try:
+        print("Testing WaterError...")
+        test_water_error(4)
+    except WaterError as err:
+        print("Caught WaterError:", err)
+    try:
+        print()
+        print("Testing catching all garden errors...")
+        test_plant_error("spinach")
+    except GardenError as err:
+        print("Caught GardenError:", err)
+    try:
+        test_water_error(4)
+    except GardenError as err:
+        print("Caught GardenError:", err)
+    finally:
+        print()
+        print("All custom error types work correctly!")
+
+
+if __name__ == "__main__":
+    veg_list = ["carrot", "fennel", "sesame"]
+    main()
diff --git a/py02/ex4/ft_finally_block.py b/py02/ex4/ft_finally_block.py
new file mode 100755
index 0000000..b029636
--- /dev/null
+++ b/py02/ex4/ft_finally_block.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+
+class GardenError(Exception):
+    def __init__(self, message="Unknown plant error"):
+        self.message = message
+        # Why self.message; why not just 'message'
+        super().__init__(self.message)
+
+
+class PlantError(GardenError):
+    pass
+
+
+class WaterError(GardenError):
+    pass
+
+
+def water_plant(plant):
+    if plant == plant.capitalize():
+        print(f"Watering {plant}: [OK]")
+    else:
+        raise PlantError(f"Invalid plant name to water: '{plant}'")
+
+
+def test_watering_system(plants):
+    print("Open watering system")
+    try:
+        for plant in plants:
+            water_plant(plant)
+    except PlantError as err:
+        print("Caught PlantError:", err)
+        print("...ending tests and returning to main")
+    finally:
+        print("Closing watering system")
+
+
+if __name__ == "__main__":
+    print("=== Garden Watering System ===")
+    print()
+    print("Testing valid plants...")
+    test_watering_system(["Tomato", "Lettuce", "Carrots"])
+    print()
+    print("Testing invalid plants...")
+    test_watering_system(["Tomato", "lettuce", "Carrots"])
+    print()
+    print("Cleanup always happens, even with errors!")
diff --git a/py03/ex0/ft_command_quest.py b/py03/ex0/ft_command_quest.py
new file mode 100755
index 0000000..af568f5
--- /dev/null
+++ b/py03/ex0/ft_command_quest.py
@@ -0,0 +1,23 @@
+#!/usr/bin/env python3
+# print(str(sys.argv))
+
+import sys
+
+
+def print_argv():
+    print(f"Program name: {sys.argv[0]}")
+    if not sys.argv[1:]:
+        print("No argument provided!")
+    else:
+        arg_received = len(sys.argv) - 1
+        print(f"Arguments received: {arg_received}")
+        index = 1
+        for arg in sys.argv[1:]:
+            print(f"Argument {index}: {arg}")
+            index += 1
+    print(f"Total arguments: {len(sys.argv)}")
+
+
+if __name__ == "__main__":
+    print("=== Command Quest ===")
+    print_argv()
diff --git a/py03/ex1/ft_score_analytics.py b/py03/ex1/ft_score_analytics.py
new file mode 100755
index 0000000..71210fb
--- /dev/null
+++ b/py03/ex1/ft_score_analytics.py
@@ -0,0 +1,61 @@
+#!/usr/bin/env python3
+
+import sys
+
+
+def create_list():
+    list_scores = []
+    for arg in sys.argv[1:]:
+        try:
+            list_scores.append(int(arg))
+        except ValueError:
+            print(f"Skipped '{arg}'")
+    if not list_scores:
+        for arg in sys.argv[1:]:
+            print(f"Invalid parameter: '{arg}'")
+        raise ValueError("No scores provided. Usage "
+                         "./ft_score_analytics.py <score1> <score2> etc")
+    return list_scores
+
+
+def check_argument_given():
+    if not sys.argv[1:]:
+        raise ValueError("No scores provided. Usage "
+                         "./ft_score_analytics.py <score1> <score2> etc")
+
+
+def score_processed(list_scores):
+    print('Scores processed: ', list_scores)
+
+
+def compute_total_score(scores):
+    total_score = 0
+    for score in scores:
+        total_score += int(score)
+    return total_score
+
+
+def score_analytics(scores):
+    score_processed(scores)
+    total_player = len(scores)
+    print(f'Total player: {total_player}')
+    total_score = compute_total_score(scores)
+    print(f'Total score: {total_score}')
+    average_score = total_score / total_player
+    print(f'Average score: {round(average_score, 2)}')
+    highest_score = max(scores)
+    print(f'Highest score: {highest_score}')
+    lowest_score = min(scores)
+    print(f'Lowest score: {lowest_score}')
+    score_range = max(scores) - min(scores)
+    print(f'Score range: {score_range}')
+
+
+if __name__ == "__main__":
+    print('=== Player Score Analytics ===')
+    try:
+        check_argument_given()
+        scores = create_list()
+        score_analytics(scores)
+    except ValueError as err:
+        print(err)
diff --git a/py03/ex2/ft_coordinate_system.py b/py03/ex2/ft_coordinate_system.py
new file mode 100755
index 0000000..f0daea1
--- /dev/null
+++ b/py03/ex2/ft_coordinate_system.py
@@ -0,0 +1,61 @@
+#!/usr/bin/env python3
+
+import math
+
+
+class InvalidSyntax(Exception):
+    def __init__(self, message="Invalid syntax"):
+        self.message = message
+        super().__init__(self.message)
+
+
+def get_player_pos():
+    while True:
+        try:
+            pos = input("Enter new coordinates"
+                        "as floats in format 'x, y, z': ")
+            split_pos = pos.split(',')
+            if len(split_pos) != 3:
+                raise InvalidSyntax()
+            try:
+                for element in split_pos:
+                    float(element)
+            except ValueError:
+                print(f"Error on parameter '{element}':"
+                      f"could not convert string to float '{element}'")
+            # break because of True loop
+            else:
+                break
+        except InvalidSyntax as err:
+            print(err)
+    return pos
+
+
+def print_info_pos_one(pos):
+    split_pos: tuple[float, ...] = tuple((float(x) for x in pos.split(",")))
+    (x1, y1, z1) = split_pos
+    print(f"It includes: X={x1}, Y={y1}, Z={z1}")
+    x2 = y2 = z2 = 0
+    distance_to_center = math.sqrt((x2-x1)**2 + (y2-y1)**2 + (z2-z1)**2)
+    print(f"Distance to the center: {round(distance_to_center, 4)}")
+
+
+def compute_distance_btw_pos(str_one, str_two):
+    pos_one: tuple[float, ...] = tuple((float(x) for x in str_one.split(",")))
+    (x1, y1, z1) = pos_one
+    pos_two: tuple[float, ...] = tuple((float(x) for x in str_two.split(",")))
+    (x2, y2, z2) = pos_two
+    distance_btw_two = math.sqrt((x2-x1)**2 + (y2-y1)**2 + (z2-z1)**2)
+    print(f"Distance between the two sets of coordinates: "
+          f"{round(distance_btw_two, 4)}")
+
+
+if __name__ == "__main__":
+    print("=== Game Coordinate System ===")
+    pos_one = get_player_pos()
+    print(f"Got a first tuple: ({pos_one})")
+    print_info_pos_one(pos_one)
+    print()
+    print("Get a second set of coordinates")
+    pos_two = get_player_pos()
+    compute_distance_btw_pos(pos_one, pos_two)
diff --git a/py03/ex3/ft_achievement_tracker.py b/py03/ex3/ft_achievement_tracker.py
new file mode 100755
index 0000000..81e9c15
--- /dev/null
+++ b/py03/ex3/ft_achievement_tracker.py
@@ -0,0 +1,94 @@
+#!/usr/bin/env python3
+# https://www.freecodecamp.org/learn/python-v9/review-dictionaries-and-sets/review-dictionaries-and-sets
+
+import random
+
+
+class Player:
+    def __init__(self, name: str, achievements: set[str]):
+        self.name = name
+        self.achievements = achievements
+
+
+def gen_player_achievements(player: str, achievements: set[str]):
+    pa = set()
+    list_ach = list(achievements)
+    for _ in range(9):
+        achievement = random.choice(list_ach)
+        pa.add(achievement)
+    return pa
+
+
+if __name__ == "__main__":
+    print("=== Achievement Tracker System ===")
+    achievements = {'Crafting Genius',
+                    'World Savior',
+                    'Master Explorer',
+                    'Collector Supreme',
+                    'Untouchable',
+                    'Boss Slayer',
+                    'Strategist',
+                    'Unstoppable',
+                    'Speed Runner',
+                    'Survivor',
+                    'Treasure Hunter',
+                    'First Steps',
+                    'Sharp Mind'}
+    print()
+    black_for = '\033[0;30m'
+    pink_bak = '\033[48;5;205m'
+    stp_color = '\033[0m'
+    # print players' achievement(s)
+    players_list: list[str] = ['Alice', 'Bob', 'Charlie', 'Dylan']
+    players = []
+    i = 0
+    for player in players_list:
+        players.append(Player(player,
+                       gen_player_achievements(player, achievements)))
+        print(f"{black_for}{pink_bak}Player {players[i].name}:"
+              f"{stp_color} {players[i].achievements}")
+        i += 1
+    print()
+    union = players[0].achievements.union(players[1].achievements,
+                                          players[2].achievements,
+                                          players[3].achievements)
+    print(f"{black_for}{pink_bak}All distinct achievements:"
+          f"{stp_color} {union}")
+    print()
+    common_achievements = players[0].achievements.intersection(
+                        players[1].achievements,
+                        players[2].achievements,
+                        players[3].achievements)
+    print(f"{black_for}{pink_bak}Common achievements:"
+          f"{stp_color} {common_achievements}")
+    print()
+    # print players' unique achievement(s)
+    print("Only", players[0].name, "has: ",
+          players[0].achievements.difference(players[1].achievements,
+          players[2].achievements,
+          players[3].achievements))
+    print("Only", players[1].name, "has: ",
+          players[1].achievements.difference(players[0].achievements,
+          players[2].achievements,
+          players[3].achievements))
+    print("Only", players[2].name, "has: ",
+          players[2].achievements.difference(players[1].achievements,
+          players[0].achievements,
+          players[3].achievements))
+    print("Only", players[3].name, "has: ",
+          players[3].achievements.difference(players[1].achievements,
+          players[2].achievements,
+          players[0].achievements))
+    print()
+    # print what each player is missing
+    i = 0
+    # iterate through the list of string
+    for player in players_list:
+        missing = set()
+        for key in achievements:
+            # check players' achievement in list of instances
+            if key not in players[i].achievements:
+                missing.add(key)
+        print(f"{black_for}{pink_bak}{players[i].name}"
+              f" is missing\033[0m {missing}")
+        i += 1
diff --git a/py03/ex4/ft_inventory_system.py b/py03/ex4/ft_inventory_system.py
new file mode 100755
index 0000000..104652a
--- /dev/null
+++ b/py03/ex4/ft_inventory_system.py
@@ -0,0 +1,83 @@
+#!/usr/bin/env python3
+# https://www.freecodecamp.org/learn/python-v9/review-dictionaries-and-sets/review-dictionaries-and-sets
+
+import sys
+
+
+def ft():
+    print("=== Inventory System Analysis ===")
+    # check for when there are no params given
+    if len(sys.argv) < 2:
+        print("Enter items following this format: <item_name>:<quantity>")
+        return
+    # initialize dictionary
+    inventory = {}
+    # init list to check for duplicates
+    seen = []
+    for arg in sys.argv[1:]:
+        try:
+            item, quantity = arg.split(':')
+            # print redundant item.s
+            if item in seen:
+                print(f"Redundant item '{item}' - discaring")
+            else:
+                seen.append(item)
+            try:
+                # check that quantities are int
+                int(quantity)
+                if int(quantity) < 0:
+                    raise ValueError("quantity cannot be negative")
+            except ValueError as err:
+                print(f"Quantity error for '{item}': {err}")
+            else:
+                # populate dict
+                inventory[item] = quantity
+        except ValueError:
+            print(f"Error - invalid parameter '{arg.rstrip()}'")
+            if arg == sys.argv[-1] and arg == sys.argv[1]:
+                return
+    # check for when there are many invalid param and no valid params
+    if not seen:
+        return
+    if not inventory:
+        return
+    print(f"Got inventory: {inventory}")
+    item_list = []
+    for item in inventory.keys():
+        item_list.append(item)
+    print(f"Item list: {item_list}")
+    total_quantity = 0
+    for quantity in inventory.values():
+        total_quantity += int(quantity)
+    print(f"Total quantity for the "
+          f"{len(inventory.values())} items: {total_quantity}")
+    # compute percentages
+    for key in inventory:
+        per_of_total = round(100 * (int(inventory[key]) / total_quantity), 1)
+        print(f"Item {key} represents {per_of_total}%")
+    # look for item with max quantity
+    max_value = 0
+    max_key = item_list[0]
+    for key in inventory:
+        if max_value == 0:
+            max_value = int(inventory[key])
+        if int(inventory[key]) > max_value:
+            max_value = int(inventory[key])
+            max_key = key
+    print(f"Item most abundant: {max_key} with quantity {max_value}")
+    # look for item with min quantity
+    min_value = 0
+    min_key = item_list[0]
+    for key in inventory:
+        if min_value == 0:
+            min_value = int(inventory[key])
+        if int(inventory[key]) < min_value:
+            min_value = int(inventory[key])
+            min_key = key
+    print(f"Item least abundant: {min_key} with quantity {min_value}")
+    inventory.update({'magic item': '1'})
+    print(inventory)
+
+
+if __name__ == "__main__":
+    ft()
diff --git a/py03/ex5/ft_data_stream.py b/py03/ex5/ft_data_stream.py
new file mode 100755
index 0000000..b2b0aa6
--- /dev/null
+++ b/py03/ex5/ft_data_stream.py
@@ -0,0 +1,50 @@
+#!/usr/bin/env python3
+# https://www.geeksforgeeks.org/python/how-to-yield-values-from-list-in-python/
+
+import random
+
+players = ['john', 'yaya', 'elise', 'niko']
+actions = ['jump', 'walk', 'run', 'swim']
+
+
+def gen_event(players, actions):
+    player = random.choice(players)
+    action = random.choice(actions)
+    yield player, action
+
+
+# print 1,000 events
+for event in range(1000):
+    # gen_event() returns a 'generator'
+    g = gen_event(players, actions)
+    # create a tuple
+    event_tuple = tuple(next(g))
+    # unpack the tuple
+    (player, action) = event_tuple
+    print(f"Event {event}: Player {player} did {action}")
+print()
+
+# create a list of 10 tuples
+events = []
+for i in range(10):
+    g = gen_event(players, actions)
+    event_tuple = tuple(next(g))
+    events.append(event_tuple)
+print(f"Build a list of 10 events: {events}")
+print()
+
+
+# consume list
+def consume_event(events, nb_events):
+    for i in range(nb_events):
+        ran = random.choice(events)
+        events.remove(ran)
+        yield ran
+
+
+nb_events = len(events)
+
+
+for event in consume_event(events, nb_events):
+    print(f"Got event from list: {event}")
+    print(f"Remains in list: {events}")
diff --git a/py03/ex6/ft_data_alchemist.py b/py03/ex6/ft_data_alchemist.py
new file mode 100755
index 0000000..c1d5794
--- /dev/null
+++ b/py03/ex6/ft_data_alchemist.py
@@ -0,0 +1,33 @@
+#!/usr/bin/env python3
+
+import random
+
+print("=== Game Data Alchemist ===")
+mixed = ['Alice', 'bob', 'Charlie', 'dylan',
+         'Emma', 'Gregory', 'john', 'kevin', 'Liam']
+print("Initial list of player:", mixed)
+print()
+all_cap = [name.capitalize() for name in mixed]
+print("New list with all names capitalized", all_cap)
+print()
+cap_only = [name.capitalize() for name in mixed if name == name.title()]
+print("New list of capitalized names only", cap_only)
+print()
+# for name in all_cap:
+#     score = random.randint(1,300)
+#     d[name] = score
+d = {name: random.randint(1, 300) for name in all_cap}
+print("Score dict;", d)
+print()
+total_score = sum(d[name] for name in d)
+nb_names = len(all_cap)
+average = round(total_score / nb_names, 2)
+print("Score average is:", average)
+print()
+# ahigher = {}
+# for name in d:
+#     if d[name] > average:
+#         ahigher[name] = d[name]
+# print(ahigher)
+higher = {name: d[name] for name in d if d[name] > average}
+print("High scores:", higher)
diff --git a/py04/ex0/ft_ancient_text.py b/py04/ex0/ft_ancient_text.py
new file mode 100755
index 0000000..152c0a2
--- /dev/null
+++ b/py04/ex0/ft_ancient_text.py
@@ -0,0 +1,44 @@
+#!/usr/bin/env python3
+
+import sys
+
+
+def read_content() -> None:
+    file = None
+    try:
+        file = open(sys.argv[1])
+        content = file.read()
+        print(f"Accessing file {sys.argv[1]}")
+        print("---")
+        print()
+        print(content)
+    except IndexError:
+        print("Usage: ft_ancient_text.py <file>")
+    except FileNotFoundError as e:
+        print(f"Error opening the file '{sys.argv[1]}':", e)
+    # trying to write when disk is full
+    # also catch permission errors
+    except OSError as e:
+        print(e)
+    # No permission to read or write
+    except PermissionError as e:
+        print(e)
+    # file encoded in a format other than UTF-8
+    except UnicodeDecodeError as e:
+        print(e)
+    except IsADirectoryError as e:
+        print(e)
+    finally:
+        if file:
+            file.close()
+            print("---")
+            print(f"File '{sys.argv[1]}' closed.")
+
+
+def main() -> None:
+    print("=== Cyber Archives Recovery ===")
+    read_content()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/py04/ex1/ft_archive_creation.py b/py04/ex1/ft_archive_creation.py
new file mode 100755
index 0000000..2ae1612
--- /dev/null
+++ b/py04/ex1/ft_archive_creation.py
@@ -0,0 +1,96 @@
+#!/usr/bin/env python3
+
+import sys
+
+
+def read_content() -> None:
+    file = None
+    try:
+        file = open(sys.argv[1])
+        content = file.read()
+        print(f"Accessing file {sys.argv[1]}")
+        print("---")
+        print()
+        print(content)
+    except IndexError:
+        print("Usage: ft_ancient_text.py <file>")
+    except FileNotFoundError as e:
+        print(f"Error opening the file '{sys.argv[1]}':", e)
+    # trying to write when disk is full
+    # also catch permission errors
+    except OSError as e:
+        print(e)
+    # No permission to read or write
+    except PermissionError as e:
+        print(e)
+    # file encoded in a format other than UTF-8
+    except UnicodeDecodeError as e:
+        print(e)
+    except IsADirectoryError as e:
+        print(e)
+    finally:
+        if file:
+            file.close()
+            print("---")
+            print(f"File '{sys.argv[1]}' closed.")
+
+
+def new_perservation_protocol() -> None:
+    # give files a value so I can close them anyway
+    original_file = None
+    new_file = None
+    # create a list to store modified lines
+    data = []
+    try:
+        original_file = open(sys.argv[1], 'r')
+        print("Transform data")
+        print("---")
+        for line in original_file:
+            line = line.rstrip('\n')
+            line = line + "#"
+            data.append(line)
+            print(line)
+        original_file.close()
+        new_file_name = input("Enter a new file name (or empty): ")
+        if not new_file_name:
+            print("Not saving data")
+        else:
+            print(f"Saving data to '{new_file_name}'")
+            new_file = open(new_file_name, 'w')
+            for line in data:
+                new_file.write(line)
+                new_file.write('\n')
+            print(f"Date saved in file '{new_file_name}'")
+            new_file.close()
+    except IndexError:
+        print("No file to copy")
+    except FileNotFoundError as e:
+        print(f"Error opening the file '{sys.argv[1]}':", e)
+    # trying to write when disk is full
+    # also catch permission errors
+    except OSError as e:
+        print(e)
+    # No permission to read or write
+    except PermissionError as e:
+        print(e)
+    # file encoded in a format other than UTF-8
+    except UnicodeDecodeError as e:
+        print(e)
+    except IsADirectoryError as e:
+        print(e)
+    finally:
+        if original_file:
+            original_file.close()
+        if new_file:
+            new_file.close()
+
+
+def main() -> None:
+    print("=== Cyber Archives Recovery & Preservation ===")
+    read_content()
+    print()
+    new_perservation_protocol()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/py04/ex2/ft_stream_management.py b/py04/ex2/ft_stream_management.py
new file mode 100755
index 0000000..4c2544b
--- /dev/null
+++ b/py04/ex2/ft_stream_management.py
@@ -0,0 +1,102 @@
+#!/usr/bin/env python3
+
+import sys
+
+
+def read_content() -> None:
+    file = None
+    try:
+        file = open(sys.argv[1])
+        content = file.read()
+        print(f"Accessing file {sys.argv[1]}")
+        print("---")
+        print()
+        print(content)
+    except IndexError:
+        print("[STDERR] Usage: ft_ancient_text.py <file>", file=sys.stderr)
+    except FileNotFoundError as e:
+        print(f"[STDERR] Error opening the file '{sys.argv[1]}':",
+              e, file=sys.stderr)
+    # trying to write when disk is full
+    # also catch permission errors
+    except OSError as e:
+        print("[STDERR]", e, file=sys.stderr)
+    # No permission to read or write
+    except PermissionError as e:
+        print("[STDERR]", e, file=sys.stderr)
+    # file encoded in a format other than UTF-8
+    except UnicodeDecodeError as e:
+        print("[STDERR]", e, file=sys.stderr)
+    except IsADirectoryError as e:
+        print("[STDERR]", e, file=sys.stderr)
+    finally:
+        if file:
+            file.close()
+            print("---")
+            print(f"File '{sys.argv[1]}' closed.")
+
+
+def new_preservation_protocol() -> None:
+    # give files a value so I can close them anyway
+    original_file = None
+    new_file = None
+    # create a list to store modified lines
+    data = []
+    try:
+        original_file = open(sys.argv[1], 'r')
+        print("Transform data")
+        print("---")
+        for line in original_file:
+            line = line.rstrip('\n')
+            line = line + "#"
+            data.append(line)
+            print(line)
+        original_file.close()
+        sys.stdout.write("Enter a new file name (or empty): ")
+        # flush buffer
+        sys.stdout.flush()
+        new_file_name = sys.stdin.readline()
+        new_file_name = new_file_name.rstrip('\n')
+        if not new_file_name:
+            print("Not saving data")
+        else:
+            print(f"Saving data to '{new_file_name}'")
+            new_file = open(new_file_name, 'w')
+            for line in data:
+                new_file.write(line)
+                new_file.write('\n')
+            print(f"Date saved in file '{new_file_name}'")
+            new_file.close()
+    except IndexError:
+        print("[STDERR] No file to copy", file=sys.stderr)
+    except FileNotFoundError as e:
+        print(f"[STDERR] Error opening the file '{sys.argv[1]}':",
+              e, file=sys.stderr)
+    # trying to write when disk is full
+    # also catch permission errors
+    except OSError as e:
+        print("[STDERR]", e, file=sys.stderr)
+    # No permission to read or write
+    except PermissionError as e:
+        print("[STDERR]", e, file=sys.stderr)
+    # file encoded in a format other than UTF-8
+    except UnicodeDecodeError as e:
+        print("[STDERR]", e, file=sys.stderr)
+    except IsADirectoryError as e:
+        print("[STDERR]", e, file=sys.stderr)
+    finally:
+        if original_file:
+            original_file.close()
+        if new_file:
+            new_file.close()
+
+
+def main() -> None:
+    print("=== Cyber Archives Recovery & Preservation ===")
+    read_content()
+    print()
+    new_preservation_protocol()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/py04/ex3/ft_vault_security.py b/py04/ex3/ft_vault_security.py
new file mode 100755
index 0000000..3395a38
--- /dev/null
+++ b/py04/ex3/ft_vault_security.py
@@ -0,0 +1,48 @@
+#!/usr/bin/env python3
+# Create a function secure_archive() that provides safe access to any file for
+# reading or writing. It returns a tuple (True|False, str) that indicates
+# whether the operation #succeeded (the boolean) and provides the associated
+# content (either the file’s contents or an error message). The function takes
+# the following parameters: a mandatory file name, an optional int or str
+# (your choice) that indicates the action to perform (read or write), and
+# another optional string that contains the content to write to the file.
+# https://docs.python.org/3/library/functions.html#repr
+
+def secure_archive(file: str, write=None, to_write=None) -> tuple[bool, str]:
+    try:
+        with open(file, "r") as f:
+            content = f.read()
+            if write is None:
+                return (True, content)
+            if write:
+                with open(file, "w") as f:
+                    f.write(to_write)
+                    return (True, to_write)
+    except FileNotFoundError as err:
+        content = f"{err}"
+    except PermissionError as err:
+        content = f"{err}"
+    except OSError as err:
+        content = f"{err}"
+    return (False, content)
+
+
+def main() -> None:
+    to_write = "Content successfully write to file"
+    print("=== Cyber Archives Security ===")
+    print("Using 'secure archive' to read from a non-existent file:")
+    print(secure_archive("file_does_not_exist.txt"))
+    print()
+    print("Using 'secure archive' to read from accessible file:")
+    print(secure_archive("permission_issue.txt"))
+    print()
+    print("Using 'secure archive' to read a regular file:")
+    print(secure_archive("ancient_fragment.txt"))
+    print()
+    print("Using 'secure archive' to write content to file :")
+    # pass 1 to write
+    print(secure_archive("ancient_fragment.txt", 1, to_write))
+
+
+if __name__ == "__main__":
+    main()
diff --git a/py05/ex0/data_processor.py b/py05/ex0/data_processor.py
new file mode 100755
index 0000000..56166ac
--- /dev/null
+++ b/py05/ex0/data_processor.py
@@ -0,0 +1,236 @@
+#!/usr/bin/env python3
+
+from abc import ABC, abstractmethod
+import typing
+import sys
+
+
+class DataProcessor(ABC):
+    def __init__(self, name: str) -> None:
+        self.storage: typing.List[typing.Any] = []
+        self.rank: int = 0
+        self.counter: int = 0
+        self.name = name
+
+    @abstractmethod
+    def validate(self, data: typing.Any) -> bool:
+        pass
+
+    @abstractmethod
+    def ingest(self, data: typing.Any) -> None:
+        pass
+
+    def output(self) -> tuple[int, str]:
+        # extract the oldest piece of data
+        # piece of data is removed
+        position = self.rank
+        self.rank += 1
+        if isinstance(self.storage[0], dict):
+            entry = self.storage[0]
+            output_tuple: tuple = tuple(entry.values())
+            to_return = (f"{output_tuple[0]}: {output_tuple[1]}")
+            self.storage.pop(0)
+            return position, to_return
+        to_return = self.storage[0]
+        self.storage.pop(0)
+        return position, to_return
+
+
+class NumericProcessor(DataProcessor):
+
+    def validate(self, data: int | float | typing.List[int | float]) -> bool:
+        try:
+            if isinstance(data, int):
+                self.counter += 1
+                return True
+            elif isinstance(data, float):
+                self.counter += 1
+                return True
+            elif isinstance(data, typing.List):
+                type_list = "yes"
+                for item in data:
+                    self.counter += 1
+                    if not isinstance(item, int | float):
+                        type_list = "no"
+                        self.counter -= 1
+                if type_list == "yes":
+                    return True
+                else:
+                    raise ValueError()
+            else:
+                raise ValueError()
+        except ValueError:
+            return False
+
+    def ingest(self, data: int | float | typing.List[int | float]) -> None:
+        try:
+            if isinstance(data, typing.List):
+                for item in data:
+                    if isinstance(item, int | float):
+                        self.storage.append(item)
+            elif isinstance(data, int | float):
+                self.storage.append(data)
+            else:
+                raise ValueError()
+        except ValueError:
+            print("Improper numeric data", file=sys.stderr)
+
+
+def is_number(s: str) -> bool:
+    try:
+        float(s)
+        return True
+    except (ValueError, TypeError):
+        return False
+
+
+class TextProcessor(DataProcessor):
+
+    def validate(self, data: str | typing.List[str]) -> bool:
+        try:
+            if isinstance(data, str):
+                if is_number(data):
+                    raise ValueError()
+                else:
+                    self.counter += 1
+                    return True
+            elif isinstance(data, typing.List):
+                for item in data:
+                    if isinstance(item, str):
+                        if is_number(item):
+                            raise ValueError()
+                            return False
+                        elif isinstance(item, dict):
+                            raise ValueError()
+                            return False
+                        else:
+                            self.counter += 1
+                    if isinstance(item, dict):
+                        raise ValueError()
+                        return False
+                return True
+            else:
+                raise ValueError()
+        except ValueError:
+            return False
+
+    def ingest(self, data: str | typing.List[str]) -> None:
+        try:
+            if isinstance(data, str):
+                self.storage.append(data)
+            elif isinstance(data, typing.List):
+                for item in data:
+                    if is_number(item):
+                        raise ValueError()
+                    elif isinstance(item, dict):
+                        raise ValueError()
+                    else:
+                        self.storage.append(item)
+            else:
+                raise ValueError()
+        except ValueError:
+            print("Improper text data", file=sys.stderr)
+
+
+class LogProcessor(DataProcessor):
+
+    def validate(self, data: dict | typing.List[dict]) -> bool:
+        try:
+            if isinstance(data, dict):
+                return True
+            if isinstance(data, typing.List):
+                for item in data:
+                    if isinstance(item, dict):
+                        self.counter += 1
+                    else:
+                        raise ValueError()
+                        return False
+                return True
+            else:
+                raise ValueError()
+        except ValueError:
+            return False
+
+    def ingest(self, data: dict | typing.List[dict]) -> None:
+        try:
+            if isinstance(data, dict):
+                for item in data:
+                    self.storage.append(item)
+            elif isinstance(data, typing.List):
+                for item in data:
+                    if isinstance(item, dict):
+                        self.storage.append(item)
+            else:
+                raise ValueError()
+        except ValueError:
+            print("Improper log data", file=sys.stderr)
+
+
+def testNumericProcessor() -> None:
+    is_num = NumericProcessor("Numeric Processor")
+    test_num: typing.List = [42, 42.0, 'FortyTwo']
+    for item in test_num:
+        print(f"Trying to validate input {item}: ", end='')
+        print(is_num.validate(item))
+    print("Testing invalid ingestion of string 'foo' without prior validation")
+    print("Got exception: ", end='')
+    # flush buffer
+    sys.stdout.flush()
+    # will raise a mypy error
+    is_num.ingest('foo')
+    is_num.ingest([1, 2, 3, 4, 5])
+    print(f"Processing data: {is_num.storage}")
+    print(f"Extracting {len(is_num.storage)} values...")
+    while is_num.storage:
+        position, value = is_num.output()
+        print(f"Numeric value {position} : {value}")
+
+
+def testTextProcessor() -> None:
+    is_text = TextProcessor("Text Processor")
+    # test_text: typing.List = ['42', '42.0', 'FortyTwo', ['More', '43']]
+    test_text: typing.List = ['42', '42.0', 'FortyTwo']
+    for item in test_text:
+        print(f"Trying to validate input {item}: ", end='')
+        print(is_text.validate(item))
+    test_list_text: typing.List = ['Hello', 'Nexus', 'FortyTwo']
+    print(f"Trying to validate '{test_list_text}': "
+          f"{is_text.validate(test_list_text)}")
+    is_text.ingest(test_list_text)
+    print(f"Processing data: {is_text.storage}")
+    print(f"Extracting {len(is_text.storage)} values...")
+    while is_text.storage:
+        position, value = is_text.output()
+        print(f"Text value {position} : {value}")
+
+
+def testLogProcessor() -> None:
+    log = [{'log_level': 'NOTICE',
+           'log_message': 'Connection to server'},
+           {'log_level': 'ERROR',
+           'log_message': 'Unauthorized access!!'}]
+    is_log = LogProcessor("Log Processor")
+    # will raise a mypy error
+    print(f"Trying to validate input 'Hello': {is_log.validate('Hello')}")
+    is_log.ingest(log)
+    print(f"Processing data: {is_log.storage}")
+    print(f"Extracting {len(is_log.storage)} values...")
+    while is_log.storage:
+        position, value = is_log.output()
+        print(f"Log entry {position} : {value}")
+
+
+def main() -> None:
+    print("=== Code Nexus - Data Processor ===")
+    print("Testing Numeric Processor...")
+    testNumericProcessor()
+    print()
+    print("Testing Text Processor...")
+    testTextProcessor()
+    print()
+    print("Testing Log Processor...")
+    testLogProcessor()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/py05/ex1/data_stream.py b/py05/ex1/data_stream.py
new file mode 100755
index 0000000..b457a24
--- /dev/null
+++ b/py05/ex1/data_stream.py
@@ -0,0 +1,278 @@
+#!/usr/bin/env python3
+
+from abc import ABC, abstractmethod
+import typing
+import sys
+
+
+class DataProcessor(ABC):
+    def __init__(self, name: str) -> None:
+        self.storage: typing.List[typing.Any] = []
+        self.rank: int = 0
+        self.counter: int = 0
+        self.name = name
+
+    @abstractmethod
+    def validate(self, data: typing.Any) -> bool:
+        pass
+
+    @abstractmethod
+    def ingest(self, data: typing.Any) -> None:
+        pass
+
+    def output(self) -> tuple[int, str]:
+        # extract the oldest piece of data
+        # piece of data is removed
+        position = self.rank
+        self.rank += 1
+        if isinstance(self.storage[0], dict):
+            entry = self.storage[0]
+            output_tuple: tuple = tuple(entry.values())
+            to_return = (f"{output_tuple[0]}: {output_tuple[1]}")
+            self.storage.pop(0)
+            return position, to_return
+        to_return = self.storage[0]
+        self.storage.pop(0)
+        return position, to_return
+
+
+class NumericProcessor(DataProcessor):
+
+    def validate(self, data: int | float | typing.List[int | float]) -> bool:
+        try:
+            if isinstance(data, int):
+                self.counter += 1
+                return True
+            elif isinstance(data, float):
+                self.counter += 1
+                return True
+            elif isinstance(data, typing.List):
+                type_list = "yes"
+                for item in data:
+                    self.counter += 1
+                    if not isinstance(item, int | float):
+                        type_list = "no"
+                        self.counter -= 1
+                if type_list == "yes":
+                    return True
+                else:
+                    raise ValueError()
+            else:
+                raise ValueError()
+        except ValueError:
+            return False
+
+    def ingest(self, data: int | float | typing.List[int | float]) -> None:
+        try:
+            if isinstance(data, typing.List):
+                for item in data:
+                    if isinstance(item, int | float):
+                        self.storage.append(item)
+            elif isinstance(data, int | float):
+                self.storage.append(data)
+            else:
+                raise ValueError()
+        except ValueError:
+            print("Improper numeric data", file=sys.stderr)
+
+
+def is_number(s: str) -> bool:
+    try:
+        float(s)
+        return True
+    except (ValueError, TypeError):
+        return False
+
+
+class TextProcessor(DataProcessor):
+
+    def validate(self, data: str | typing.List[str]) -> bool:
+        try:
+            if isinstance(data, str):
+                if is_number(data):
+                    raise ValueError()
+                else:
+                    self.counter += 1
+                    return True
+            elif isinstance(data, typing.List):
+                for item in data:
+                    if isinstance(item, str):
+                        if is_number(item):
+                            raise ValueError()
+                            return False
+                        else:
+                            self.counter += 1
+                    if isinstance(item, dict):
+                        raise ValueError()
+                        return False
+                return True
+            else:
+                raise ValueError()
+        except ValueError:
+            return False
+
+    def ingest(self, data: str | typing.List[str]) -> None:
+        try:
+            if isinstance(data, str):
+                self.storage.append(data)
+            elif isinstance(data, typing.List):
+                for item in data:
+                    if is_number(item):
+                        raise ValueError()
+                    elif isinstance(item, dict):
+                        raise ValueError()
+                    else:
+                        self.storage.append(item)
+            else:
+                raise ValueError()
+        except ValueError:
+            print("Improper text data", file=sys.stderr)
+
+
+class LogProcessor(DataProcessor):
+
+    def validate(self, data: dict | typing.List[dict]) -> bool:
+        try:
+            if isinstance(data, dict):
+                return True
+            if isinstance(data, typing.List):
+                for item in data:
+                    if isinstance(item, dict):
+                        self.counter += 1
+                    else:
+                        raise ValueError()
+                        return False
+                return True
+            else:
+                raise ValueError()
+        except ValueError:
+            return False
+
+    def ingest(self, data: dict | typing.List[dict]) -> None:
+        try:
+            if isinstance(data, dict):
+                for item in data:
+                    self.storage.append(item)
+            elif isinstance(data, typing.List):
+                for item in data:
+                    if isinstance(item, dict):
+                        self.storage.append(item)
+            else:
+                raise ValueError()
+        except ValueError:
+            print("Improper log data", file=sys.stderr)
+
+
+class DataStream():
+    def __init__(self) -> None:
+        self.processor: list = []
+        self.counter: int = 0
+
+    def register_processor(self, proc: DataProcessor) -> None:
+        # method that allows you to register a new data processor to process
+        # the data stream.
+        self.processor.append(proc)
+
+    def process_stream(self, stream: list[typing.Any]) -> None:
+        # method that will analyze each element of the list received as a
+        # parameter and send it to the appropriate registered data processor.
+        # Error messages will be printed if no data processor can handle an
+        # element
+        for item in stream:
+            try:
+                for processor in self.processor:
+                    # route towards appropriate processors
+                    if processor.validate(item):
+                        processor.ingest(item)
+                        # stop when appropriate processors is found
+                        break
+                else:
+                    raise ValueError()
+            except ValueError:
+                print(f"Data Stream Error - Can't process "
+                      f"element in stream: {item}", file=sys.stderr)
+
+    def print_processors_stats(self) -> None:
+        if self.processor == []:
+            print("No processor found, no data")
+        else:
+            for processor in self.processor:
+                remaining = len(processor.storage)
+                print(f"{processor.name}: total {processor.counter} items "
+                      f"processed, remaining {remaining} on processor")
+
+    def consume_processors(self, rm_1: int, rm_2: int, rm_3: int) -> None:
+        for processor in self.processor:
+            if processor.name == "Numeric Processor":
+                for _ in range(rm_1):
+                    processor.output()
+            elif processor.name == "Text Processor":
+                for _ in range(rm_2):
+                    processor.output()
+            elif processor.name == "Log Processor":
+                for _ in range(rm_3):
+                    processor.output()
+
+
+def main() -> None:
+
+    # Create a test scenario that demonstrates the correct processing of a data
+    # stream.  Display statistics on registered data processors, consume
+    # elements using the output method of each data processor and show updated
+    # statistics
+
+    print("=== Code Nexus - Data Stream ===")
+    print()
+    print("Initialize Data Stream...")
+    print()
+    processors = DataStream()
+    print("=== DataStream statistic ===")
+    processors.print_processors_stats()
+    print()
+    # initialize processors
+    is_num = NumericProcessor("Numeric Processor")
+    print("Registering Numeric Processor")
+    print()
+    processors.register_processor(is_num)
+    batch_one = ['Hello world',
+                 [3.14, -1, 2.71],
+                 [{
+                    'log_level': 'WARNING',
+                    ' log_message': 'Telnet access! Use ssh instead'
+                  },
+                  {
+                    'log_level': 'INFO',
+                    'log_message': 'User wil is connected'
+                  }],
+                 42,
+                 ['Hi', 'five']]
+    print(f"Sending first batch of data on stream: {batch_one}")
+    processors.process_stream(batch_one)
+    print()
+    print("=== DataStream statistic ===")
+    processors.print_processors_stats()
+    print()
+    print("Registering other data processors")
+    is_text = TextProcessor("Text Processor")
+    is_log = LogProcessor("Log Processor")
+    processors.register_processor(is_text)
+    processors.register_processor(is_log)
+    print()
+    print("Send the same batch again")
+    processors.process_stream(batch_one)
+    print()
+    print("=== DataStream statistic ===")
+    processors.print_processors_stats()
+    print()
+    consume_num = 3
+    consume_text = 2
+    consume_log = 1
+    print(f"Consume some elements from the data processors:"
+          f" Numeric {consume_num}, Text {consume_text}, Log {consume_log}")
+    processors.consume_processors(consume_num, consume_text, consume_log)
+    print("=== DataStream statistic ===")
+    processors.print_processors_stats()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/py05/ex2/data_pipeline.py b/py05/ex2/data_pipeline.py
new file mode 100755
index 0000000..a558ac6
--- /dev/null
+++ b/py05/ex2/data_pipeline.py
@@ -0,0 +1,338 @@
+#!/usr/bin/env python3
+#
+# "Briefing: Your task is to integrate work from past exercices into a complete
+# data processing pipeline that demonstrates understanding of polymorphic
+# concepts.  Use your code from Exercise 1 and improve it in order to obtain a
+# complete data pipeline.  Your DataStream class already handles input streams.
+# You need now to handle the output part of the pipeline. This will be achieved
+# by using a plugin system for export classes, made export-compatible through
+# duck typing."
+#
+# https://typing.python.org/en/latest/spec/protocol.html
+
+from abc import ABC, abstractmethod
+import typing
+import sys
+
+
+class ExportPlugin(typing.Protocol):
+
+    def process_output(self, data: list[tuple[int, str]]) -> None:
+        # The type of the data parameter is a list of tuples that matches the
+        # return value of the output method from the DataProcessor class.
+        # output CSV or JSON
+        # if list output as CSV
+        ...
+
+
+class ExportCSV(ExportPlugin):
+
+    def process_output(self, data: list[tuple[int, str]]) -> None:
+        i = 0
+        print("CSV Output:")
+        for item in data:
+            print(data[i][1], end='')
+            if item is not data[-1]:
+                print(',', end='')
+            else:
+                print()
+            i += 1
+
+
+class ExportJSON(ExportPlugin):
+
+    def process_output(self, data: list[tuple[int, str]]) -> None:
+        i = 0
+        print("JSON Output:")
+        print("{", end='')
+        for item in data:
+            print(f"\"item_{data[i][0]}\": \"{data[i][1]}\"", end='')
+            if item is not data[-1]:
+                print(', ', end='')
+            else:
+                print(end='')
+            i += 1
+        print("}")
+
+
+class DataProcessor(ABC):
+    def __init__(self, name: str) -> None:
+        self.storage: typing.List[typing.Any] = []
+        self.rank: int = 0
+        self.counter: int = 0
+        self.name = name
+
+    @abstractmethod
+    def validate(self, data: typing.Any) -> bool:
+        pass
+
+    @abstractmethod
+    def ingest(self, data: typing.Any) -> None:
+        pass
+
+    def output(self) -> tuple[int, str]:
+        # extract the oldest piece of data
+        # piece of data is removed
+        position = self.rank
+        self.rank += 1
+        if isinstance(self.storage[0], dict):
+            entry = self.storage[0]
+            output_tuple: tuple = tuple(entry.values())
+            to_return = (f"{output_tuple[0]}: {output_tuple[1]}")
+            self.storage.pop(0)
+            return position, to_return
+        to_return = self.storage[0]
+        self.storage.pop(0)
+        return position, to_return
+
+
+class NumericProcessor(DataProcessor):
+
+    def validate(self, data: int | float | typing.List[int | float]) -> bool:
+        try:
+            if isinstance(data, int):
+                self.counter += 1
+                return True
+            elif isinstance(data, float):
+                self.counter += 1
+                return True
+            elif isinstance(data, typing.List):
+                type_list = "yes"
+                for item in data:
+                    self.counter += 1
+                    if not isinstance(item, int | float):
+                        type_list = "no"
+                        self.counter -= 1
+                if type_list == "yes":
+                    return True
+                else:
+                    raise ValueError()
+            else:
+                raise ValueError()
+        except ValueError:
+            return False
+
+    def ingest(self, data: int | float | typing.List[int | float]) -> None:
+        try:
+            if isinstance(data, typing.List):
+                for item in data:
+                    if isinstance(item, int | float):
+                        self.storage.append(item)
+            elif isinstance(data, int | float):
+                self.storage.append(data)
+            else:
+                raise ValueError()
+        except ValueError:
+            print("Improper numeric data", file=sys.stderr)
+
+
+def is_number(s: str) -> bool:
+    try:
+        float(s)
+        return True
+    except (ValueError, TypeError):
+        return False
+
+
+class TextProcessor(DataProcessor):
+
+    def validate(self, data: str | typing.List[str]) -> bool:
+        try:
+            if isinstance(data, str):
+                if is_number(data):
+                    raise ValueError()
+                else:
+                    self.counter += 1
+                    return True
+            elif isinstance(data, typing.List):
+                for item in data:
+                    if isinstance(item, str):
+                        if is_number(item):
+                            raise ValueError()
+                            return False
+                        else:
+                            self.counter += 1
+                    if isinstance(item, dict):
+                        raise ValueError()
+                        return False
+                return True
+            else:
+                raise ValueError()
+        except ValueError:
+            return False
+
+    def ingest(self, data: str | typing.List[str]) -> None:
+        try:
+            if isinstance(data, str):
+                self.storage.append(data)
+            elif isinstance(data, typing.List):
+                for item in data:
+                    if is_number(item):
+                        raise ValueError()
+                    elif isinstance(item, dict):
+                        raise ValueError()
+                    else:
+                        self.storage.append(item)
+            else:
+                raise ValueError()
+        except ValueError:
+            print("Improper text data", file=sys.stderr)
+
+
+class LogProcessor(DataProcessor):
+
+    def validate(self, data: dict | typing.List[dict]) -> bool:
+        try:
+            if isinstance(data, dict):
+                return True
+            if isinstance(data, typing.List):
+                for item in data:
+                    if isinstance(item, dict):
+                        self.counter += 1
+                    else:
+                        raise ValueError()
+                        return False
+                return True
+            else:
+                raise ValueError()
+        except ValueError:
+            return False
+
+    def ingest(self, data: dict | typing.List[dict]) -> None:
+        try:
+            if isinstance(data, dict):
+                for item in data:
+                    self.storage.append(item)
+            elif isinstance(data, typing.List):
+                for item in data:
+                    if isinstance(item, dict):
+                        self.storage.append(item)
+            else:
+                raise ValueError()
+        except ValueError:
+            print("Improper log data", file=sys.stderr)
+
+
+class DataStream():
+    def __init__(self) -> None:
+        self.processor: list = []
+        self.counter: int = 0
+
+    def register_processor(self, proc: DataProcessor) -> None:
+        # method that allows you to register a new data processor to process
+        # the data stream.
+        self.processor.append(proc)
+
+    def process_stream(self, stream: list[typing.Any]) -> None:
+        # method that will analyze each element of the list received as a
+        # parameter and send it to the appropriate registered data processor.
+        # Error messages will be printed if no data processor can handle an
+        # element
+        for item in stream:
+            try:
+                for processor in self.processor:
+                    # route towards appropriate processors
+                    if processor.validate(item):
+                        processor.ingest(item)
+                        # stop when appropriate processors is found
+                        break
+                else:
+                    raise ValueError()
+            except ValueError:
+                print(f"Data Stream Error - Can't process "
+                      f"element in stream: {item}", file=sys.stderr)
+
+    def print_processors_stats(self) -> None:
+        if self.processor == []:
+            print("No processor found, no data")
+        else:
+            for processor in self.processor:
+                remaining = len(processor.storage)
+                print(f"{processor.name}: total {processor.counter} items "
+                      f"processed, remaining {remaining} on processor")
+
+    def output_pipeline(self, nb: int, plugin: ExportPlugin) -> None:
+        # method, to be used after calling process_stream, that will consume nb
+        # elements from all registered data processors and export them using
+        # the provided compatible plugin.
+        for processor in self.processor:
+            tmp = []
+            for _ in range(nb):
+                # to make check whether there is something to output
+                if processor.storage:
+                    tmp.append(processor.output())
+            plugin.process_output(tmp)
+
+
+def main() -> None:
+
+    # Create a test scenario that demonstrates the correct processing of a data
+    # stream.  Display statistics on registered data processors, consume
+    # elements using the output method of each data processor and show updated
+    # statistics
+
+    print("=== Code Nexus - Data Pipeline ===")
+    print()
+    print("Initialize Data Stream...")
+    print()
+    processors = DataStream()
+    print("=== DataStream statistic ===")
+    processors.print_processors_stats()
+    print()
+    # initialize processors
+    is_num = NumericProcessor("Numeric Processor")
+    is_text = TextProcessor("Text Processor")
+    is_log = LogProcessor("Log Processor")
+    print("Registering Processors")
+    print()
+    processors.register_processor(is_num)
+    processors.register_processor(is_text)
+    processors.register_processor(is_log)
+    batch_one = ['Hello world',
+                 [3.14, -1, 2.71],
+                 [{
+                    'log_level': 'WARNING',
+                    ' log_message': 'Telnet access! Use ssh instead'
+                  },
+                  {
+                    'log_level': 'INFO',
+                    'log_message': 'User wil is connected'
+                  }],
+                 42,
+                 ['Hi', 'five']]
+    print(f"Sending first batch of data on stream: {batch_one}")
+    processors.process_stream(batch_one)
+    print()
+    print("=== DataStream statistic ===")
+    processors.print_processors_stats()
+    print()
+    print("Send 3 processed data from each processor to a CSV plugin:")
+    PluginCSV = ExportCSV()
+    processors.output_pipeline(3, PluginCSV)
+    print()
+    print("=== DataStream statistic ===")
+    processors.print_processors_stats()
+    print()
+    batch_two = [21,
+                 ['I love AI', 'LLMs are wonderful', 'Stay healthy'],
+                 [{'log_level': ' ERROR', 'log_message': '500 server crash'},
+                  {'log_level': 'NOTICE',
+                   'log_message': 'Certificate expires in 10 days'}],
+                 [32, 42, 64, 84, 128, 168],
+                 'World hello']
+    print(f"Send another batch of data : {batch_two}")
+    processors.process_stream(batch_two)
+    print()
+    print("=== DataStream statistic ===")
+    processors.print_processors_stats()
+    print()
+    print("Send 5 processed data from each processor to a JSON plugin:")
+    PluginJSON = ExportJSON()
+    processors.output_pipeline(5, PluginJSON)
+    print()
+    print("=== DataStream statistic ===")
+    processors.print_processors_stats()
+
+
+if __name__ == "__main__":
+    main()