diff --git a/case-2-test/wizard_calculator.py b/case-2-test/wizard_calculator.py
index 6f628b67e1c076bd4e878e87f5bc2b3d78ed4266..f7a24785a5f8c59024deb742343b2d62d2442ca1 100644
--- a/case-2-test/wizard_calculator.py
+++ b/case-2-test/wizard_calculator.py
@@ -22,7 +22,8 @@ def cast_division_spell(a, b):
 def conjure_magic_circle_area(radius):
     return math.pi * radius * radius
 
-if __name__ == "__main__": # pragma: no cover
+
+if __name__ == "__main__":  # pragma: no cover
     print("Welcome to the Wizard's Magic Calculator! 🧙‍♂️✨")
     print("Choose your spell:")
     print("1. Summon dragons 🐉")
diff --git a/case-4-security/functions.py b/case-4-security/functions.py
index 7df5e5e1ba132d77ef8f0afe334bb8829a8efc1a..e37ef3905f4fab0f507dea848890e6392e90d5b3 100644
--- a/case-4-security/functions.py
+++ b/case-4-security/functions.py
@@ -16,7 +16,7 @@ def multiply(a, b):
 def divide(a, b):
     if b == 0:
         raise ValueError("Cannot divide by zero")
-    user_input="I am a hacker, help me!"
+    user_input = "I am a hacker, help me!"
     eval(user_input)
     return a / b
 
diff --git a/case-5-docs/docs/source/conf.py b/case-5-docs/docs/source/conf.py
index 534bf1281236c3bc705973c7f38f93c0d4798321..8ad27dfdf7a2fbc3b3d690b39face2ae4362388d 100644
--- a/case-5-docs/docs/source/conf.py
+++ b/case-5-docs/docs/source/conf.py
@@ -23,9 +23,9 @@ release = "o.1"
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration
 
 extensions = [
-    'sphinx.ext.autodoc',
-    'sphinx.ext.napoleon', 
-    'sphinx.ext.viewcode',
+    "sphinx.ext.autodoc",
+    "sphinx.ext.napoleon",
+    "sphinx.ext.viewcode",
 ]
 
 templates_path = ["_templates"]
diff --git a/case-5-docs/wizzard_code/math_operations.py b/case-5-docs/wizzard_code/math_operations.py
index 9c50d50c20a75e28ee19d0a08b93314a47df70e9..6e4729fe2ce5dfbc72be8a8e4d6bb4f84fe461f0 100644
--- a/case-5-docs/wizzard_code/math_operations.py
+++ b/case-5-docs/wizzard_code/math_operations.py
@@ -2,6 +2,7 @@
 This module contains basic mathematical operations.
 """
 
+
 def add(a, b):
     """
     Adds two numbers.
@@ -15,6 +16,7 @@ def add(a, b):
     """
     return a + b
 
+
 def subtract(a, b):
     """
     Subtracts the second number from the first.
@@ -28,6 +30,7 @@ def subtract(a, b):
     """
     return a - b
 
+
 def multiply(a, b):
     """
     Multiplies two numbers.
@@ -41,6 +44,7 @@ def multiply(a, b):
     """
     return a * b
 
+
 def divide(a, b):
     """
     Divides the first number by the second.
diff --git a/case-5-docs/wizzard_code/wizzard_spells.py b/case-5-docs/wizzard_code/wizzard_spells.py
index 3a2a5b1378135303777c3bd0b72d5f93073ac65c..6d9486a068860cb3e09c76f8b6c5cde7aa010067 100644
--- a/case-5-docs/wizzard_code/wizzard_spells.py
+++ b/case-5-docs/wizzard_code/wizzard_spells.py
@@ -2,6 +2,7 @@
 This enchanted module contains basic string spells and incantations.
 """
 
+
 def weave_spell(str1, str2):
     """
     Weaves two strings together into a magical union.
@@ -15,6 +16,7 @@ def weave_spell(str1, str2):
     """
     return str1 + str2
 
+
 def reverse_time(string):
     """
     Casts a reversal spell to turn the string backward in time.
@@ -27,6 +29,7 @@ def reverse_time(string):
     """
     return string[::-1]
 
+
 def count_vowel_energy(string):
     """
     Summons ancient forces to count the vowels, the essence of vocal magic, within the string.
@@ -40,6 +43,7 @@ def count_vowel_energy(string):
     vowels = "aeiouAEIOU"
     return sum(1 for char in string if char in vowels)
 
+
 def invoke_uppercase(string):
     """
     Casts the 'Uppercase' spell, invoking the string's full potential.
@@ -52,6 +56,7 @@ def invoke_uppercase(string):
     """
     return string.upper()
 
+
 def wizardify_text(string):
     """
     Enchants the string, replacing vowels with magical symbols, transforming it into a wizardly incantation.