updates

Author: Sean-Bradley

adapter/adapter_concept.py

@@ -1,4 +1,5 @@
 # pylint: disable=too-few-public-methods
+# pylint: disable=arguments-differ
 "Adapter Concept Sample Code"
 from abc import ABCMeta, abstractmethod
 

bridge/bridge_concept.py

@@ -1,4 +1,5 @@
 # pylint: disable=too-few-public-methods
+# pylint: disable=arguments-differ
 "Bridge Pattern Concept Sample Code"
 from abc import ABCMeta, abstractmethod
 

builder/builder_concept.py

@@ -1,4 +1,5 @@
 # pylint: disable=too-few-public-methods
+# pylint: disable=arguments-differ
 "Builder Concept Sample Code"
 from abc import ABCMeta, abstractmethod
 

command/command_concept.py

@@ -1,3 +1,4 @@
+# pylint: disable=arguments-differ
 "The Command Pattern Concept"
 from abc import ABCMeta, abstractmethod
 

composite/composite_concept.py

@@ -1,3 +1,4 @@
+# pylint: disable=arguments-differ
 "The Composite pattern concept"
 from abc import ABCMeta, abstractmethod
 

decorator/decorator_concept.py

@@ -1,4 +1,5 @@
 # pylint: disable=too-few-public-methods
+# pylint: disable=arguments-differ
 "Decorator Concept Sample Code"
 from abc import ABCMeta, abstractmethod
 

factory/factory_concept.py

@@ -1,4 +1,5 @@
 # pylint: disable=too-few-public-methods
+# pylint: disable=arguments-differ
 "The Factory Concept"
 from abc import ABCMeta, abstractmethod
 

interpreter/interpreter_concept.py

@@ -1,4 +1,5 @@
 # pylint: disable=too-few-public-methods
+# pylint: disable=arguments-differ
 "The Interpreter Pattern Concept"
 
 
@@ -7,7 +8,7 @@ class AbstractExpression():
     @staticmethod
     def interpret():
         """
-        The `interpret` method gets called recursively for each 
+        The `interpret` method gets called recursively for each
         AbstractExpression
         """
 

iterator/iterator_concept.py

@@ -1,4 +1,5 @@
 # pylint: disable=too-few-public-methods
+# pylint: disable=arguments-differ
 "The Iterator Pattern Concept"
 from abc import ABCMeta, abstractmethod
 

observer/observer_concept.py

@@ -1,4 +1,5 @@
 # pylint: disable=too-few-public-methods
+# pylint: disable=arguments-differ
 "Observer Design Pattern Concept"
 
 from abc import ABCMeta, abstractmethod

prototype/prototype_concept.py

@@ -1,4 +1,5 @@
 # pylint: disable=too-few-public-methods
+# pylint: disable=arguments-differ
 "Prototype Concept Sample Code"
 from abc import ABCMeta, abstractmethod
 

proxy/proxy_concept.py

@@ -1,15 +1,18 @@
 # pylint: disable=too-few-public-methods
+# pylint: disable=arguments-differ
 "A Proxy Concept Example"
 
 from abc import ABCMeta, abstractmethod
 
+
 class ISubject(metaclass=ABCMeta):
     "An interface implemented by both the Proxy and Real Subject"
     @staticmethod
     @abstractmethod
     def request():
         "A method to implement"
 
+
 class RealSubject(ISubject):
     "The actual real object that the proxy is representing"
 
@@ -20,6 +23,7 @@ def __init__(self):
     def request(self):
         return self.enormous_data
 
+
 class Proxy(ISubject):
     """
     The proxy. In this case the proxy will act as a cache for
@@ -36,18 +40,19 @@ def request(self):
         Using the proxy as a cache, and loading data into it only if
         it is needed
         """
-        if self.enormous_data == []:
+        if not self.enormous_data:
             print("pulling data from RealSubject")
             self.enormous_data = self.real_subject.request()
             return self.enormous_data
         print("pulling data from Proxy cache")
         return self.enormous_data
 
+
 # The Client
 SUBJECT = Proxy()
 # use SUBJECT
 print(id(SUBJECT))
 # load the enormous amounts of data because now we want to show it.
 print(SUBJECT.request())
 # show the data again, but this time it retrieves it from the local cache
-print(SUBJECT.request())
+print(SUBJECT.request())

singleton/singleton_concept.py

@@ -2,6 +2,7 @@
 "Singleton Concept Sample Code"
 import copy
 
+
 class Singleton():
     "The Singleton Class"
     value = []
@@ -21,6 +22,7 @@ def class_method(cls):
         "Use @classmethod to access class level variables"
         print(cls.value)
 
+
 # The Client
 # All uses of singleton point to the same memory address (id)
 print(f"id(Singleton)\t= {id(Singleton)}")
@@ -32,4 +34,4 @@ def class_method(cls):
 print(f"id(OBJECT2)\t= {id(OBJECT2)}")
 
 OBJECT3 = Singleton()
-print(f"id(OBJECT1)\t= {id(OBJECT3)}")
+print(f"id(OBJECT1)\t= {id(OBJECT3)}")

visitor/client.py

@@ -1,4 +1,5 @@
 # pylint: disable=too-few-public-methods
+# pylint: disable=arguments-differ
 "The Visitor Pattern Use Case Example"
 from abc import ABCMeta, abstractmethod
 

visitor/visitor_concept.py

@@ -1,4 +1,5 @@
 # pylint: disable=too-few-public-methods
+# pylint: disable=arguments-differ
 "The Visitor Pattern Concept"
 from abc import ABCMeta, abstractmethod