chore: enforce style guidelines

creational/abstract-factory/AbstractFactory.py

@@ -8,10 +8,10 @@ class AbstractFactory(ABC):
     """
     The Abstract Factory interface declares a set of methods that return
     different abstract products. These products are called a family and are
-    related by a high-level theme or concept. Products of one family are usually
-    able to collaborate among themselves. A family of products may have several
-    variants, but the products of one variant are incompatible with products of
-    another.
+    related by a high-level theme or concept. Products of one family are
+    usually able to collaborate among themselves. A family of products may have
+    several variants, but the products of one variant are incompatible with
+    products of another.
     """
 
     @abstractmethod

creational/abstract-factory/AbstractProductA.py

@@ -1,4 +1,4 @@
-from abc import ABC, abstractmethod
+from abc import ABC
 
 
 class AbstractProductA(ABC):

creational/abstract-factory/AbstractProductB.py

@@ -6,8 +6,8 @@ from AbstractProductA import AbstractProductA
 class AbstractProductB(ABC):
     """
     Here's the the base interface of another product. All products can interact
-    with each other, but proper interaction is possible only between products of
-    the same concrete variant.
+    with each other, but proper interaction is possible only between products
+    of the same concrete variant.
     """
 
     @abstractmethod

creational/abstract-factory/factories.py

@@ -1,13 +1,17 @@
 from AbstractFactory import AbstractFactory
-from products import (ConcreteProductA1, ConcreteProductA2, ConcreteProductB1,
-                      ConcreteProductB2)
+from products import (
+    ConcreteProductA1,
+    ConcreteProductA2,
+    ConcreteProductB1,
+    ConcreteProductB2,
+)
 
 
 class ConcreteFactory1(AbstractFactory):
     """
     Concrete Factories produce a family of products that belong to a single
-    variant. The factory guarantees that resulting products are compatible. Note
-    that signatures of the Concrete Factory's methods return an abstract
+    variant. The factory guarantees that resulting products are compatible.
+    Note that signatures of the Concrete Factory's methods return an abstract
     product, while inside the method a concrete product is instantiated.
     """
 

creational/abstract-factory/products.py

@@ -15,15 +15,14 @@ class ConcreteProductA2(AbstractProductA):
 
 
 class ConcreteProductB1(AbstractProductB):
-
     def useful_function_b(self) -> str:
         return "The result of the product B1."
 
     def another_useful_function_b(self, collaborator: AbstractProductA) -> str:
         """
-        The variant, Product B1, is only able to work correctly with the variant,
-        Product A1. Nevertheless, it accepts any instance of AbstractProductA as an
-        argument.
+        The variant, Product B1, is only able to work correctly with the
+        variant, Product A1. Nevertheless, it accepts any instance of
+        AbstractProductA as an argument.
         """
         result = collaborator.useful_function_a()
         return f"The result of the B1 collaborating with the ({result})"

creational/builder/Director.py

@@ -22,9 +22,9 @@ class Director:
     @builder.setter
     def builder(self, builder: Builder) -> None:
         """
-        The Director works with any builder instance that the client code passes
-        to it. This way, the client code may alter the final type of the newly
-        assembled product.
+        The Director works with any builder instance that the client code
+        passes to it. This way, the client code may alter the final type of the
+        newly assembled product.
         """
         self._builder = builder
 

creational/builder/builders.py

@@ -11,8 +11,8 @@ class ConcreteBuilder1(Builder):
 
     def __init__(self) -> None:
         """
-        A fresh builder instance should contain a blank product object, which is
-        used in further assembly.
+        A fresh builder instance should contain a blank product object, which
+        is used in further assembly.
         """
         self.reset()
 
@@ -25,8 +25,8 @@ class ConcreteBuilder1(Builder):
         Concrete Builders are supposed to provide their own methods for
         retrieving results. That's because various types of builders may create
         entirely different products that don't follow the same interface.
-        Therefore, such methods cannot be declared in the base Builder interface
-        (at least in a statically typed programming language).
+        Therefore, such methods cannot be declared in the base Builder
+        interface (at least in a statically typed programming language).
 
         Usually, after returning the end result to the client, a builder
         instance is expected to be ready to start producing another product.

creational/builder/products.py

@@ -6,9 +6,9 @@ class Product1:
     It makes sense to use the Builder pattern only when your products are quite
     complex and require extensive configuration.
 
-    Unlike in other creational patterns, different concrete builders can produce
-    unrelated products. In other words, results of various builders may not
-    always follow the same interface.
+    Unlike in other creational patterns, different concrete builders can
+    produce unrelated products. In other words, results of various builders may
+    not always follow the same interface.
     """
 
     def __init__(self) -> None:

creational/factory-method/ICreator.py

@@ -29,6 +29,9 @@ class ICreator(ABC):
         product = self.factory_method()
 
         # Now, use the product.
-        result = f"Creator: The same creator's code has just worked with {product.operation()}"
+        result = f"""
+        Creator: The same creator's code has just worked with
+        {product.operation()}
+        """
 
         return result

creational/factory-method/creators.py

@@ -21,6 +21,5 @@ class ConcreteCreator1(ICreator):
 
 
 class ConcreteCreator2(ICreator):
-
     def factory_method(self) -> ConcreteProduct2:
         return ConcreteProduct2()

creational/factory-method/main.py

@@ -4,13 +4,16 @@ from ICreator import ICreator
 
 def client_code(creator: ICreator) -> None:
     """
-    The client code works with an instance of a concrete creator, albeit through
-    its base interface. As long as the client keeps working with the creator via
-    the base interface, you can pass it any creator's subclass.
+    The client code works with an instance of a concrete creator, albeit
+    through its base interface. As long as the client keeps working with the
+    creator via the base interface, you can pass it any creator's subclass.
     """
 
-    print(f"Client: I'm not aware of the creator's class, but it still works.\n"
-          f"{creator.some_operation()}", end="")
+    print(
+        f"Client: I'm not aware of the creator's class, but it still works.\n"
+        f"{creator.some_operation()}",
+        end="",
+    )
 
 
 print("App: Launched with the ConcreteCreator1.")

creational/prototype/components.py

@@ -21,15 +21,16 @@ class SomeComponent:
     implementations have to override `__copy__` and `__deepcopy__` member
     functions.
     """
+
     some_int: int
     some_list_of_objects: List
     some_circular_ref: Any
 
     def __copy__(self) -> SomeComponent:
         """
-        Create a shallow copy. This method will be called whenever someone calls
-        `copy.copy` with this object and the returned value is returned as the
-        new shallow copy.
+        Create a shallow copy. This method will be called whenever someone
+        calls `copy.copy` with this object and the returned value is returned
+        as the new shallow copy.
         """
 
         # First, let's create copies of the nested objects.
@@ -38,8 +39,7 @@ class SomeComponent:
 
         # Then, let's clone the object itself, using the prepared clones of the
         # nested objects.
-        new = self.__class__(
-            self.some_int, some_list_of_objects, some_circular_ref)
+        new = self.__class__(self.some_int, some_list_of_objects, some_circular_ref)
         new.__dict__.update(self.__dict__)
 
         return new
@@ -63,8 +63,7 @@ class SomeComponent:
 
         # Then, let's clone the object itself, using the prepared clones of the
         # nested objects.
-        new = self.__class__(
-            self.some_int, some_list_of_objects, some_circular_ref)
+        new = self.__class__(self.some_int, some_list_of_objects, some_circular_ref)
 
         new.__dict__ = copy.deepcopy(self.__dict__, memo)
 

creational/prototype/main.py

@@ -9,7 +9,8 @@ circular_ref.set_parent(component)
 
 shallow_copied_component = copy.copy(component)
 
-# Let's change the list in shallow_copied_component and see if it changes in component.
+# Let's change the list in shallow_copied_component and see if it changes in
+# component.
 shallow_copied_component.some_list_of_objects.append("another object")
 if component.some_list_of_objects[-1] == "another object":
     print(