updates

Author: Sean-Bradley

adapter/README.md

@@ -4,10 +4,10 @@
 
 Section | Video Links
 -|-
-Adapter Overview | <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/16399566/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Adapter Overview"><img src="/img/udemy_btn_sm.gif" alt="Adapter Overview"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/030ih2rpOhY" target="_blank" title="Adapter Overview"><img src="/img/yt_btn_sm.gif" alt="Adapter Overview"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Adapter Overview"><img src="/img/skillshare_btn_sm.gif" alt="Adapter Overview"/></a>&nbsp;<a id="sbcodeVideoLink" href="#"><input type="image" src="/img/sbcode_btn_sm.gif" onclick="selectVideoId()"></a>
-Adapter Use Case | <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/25400220/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Adapter Use Case"><img src="/img/udemy_btn_sm.gif" alt="Adapter Use Case"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/fyws-p4WHuk" target="_blank" title="Adapter Use Case"><img src="/img/yt_btn_sm.gif" alt="Adapter Use Case"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Adapter Use Case"><img src="/img/skillshare_btn_sm.gif" alt="Adapter Use Case"/></a>&nbsp;<a id="sbcodeVideoLink" href="#"><input type="image" src="/img/sbcode_btn_sm.gif" onclick="selectVideoId()"></a>
-Python **isinstance()** Function | <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/25401048/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Python isinstance() Function"><img src="/img/udemy_btn_sm.gif" alt="Python isinstance() Function"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/Y6DzwI8xBA8" target="_blank" title="Python isinstance() Function"><img src="/img/yt_btn_sm.gif" alt="Python isinstance() Function"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Python isinstance() Function"><img src="/img/skillshare_btn_sm.gif" alt="Python isinstance() Function"/></a>&nbsp;<a id="sbcodeVideoLink" href="#"><input type="image" src="/img/sbcode_btn_sm.gif" onclick="selectVideoId()"></a>
-Python **time** Module | <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/25414958/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Python time Module"><img src="/img/udemy_btn_sm.gif" alt="Python time Module"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/WZTZeGB3o3U" target="_blank" title="Python time Module"><img src="/img/yt_btn_sm.gif" alt="Python time Module"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Python time Module"><img src="/img/skillshare_btn_sm.gif" alt="Python time Module"/></a>&nbsp;<a id="sbcodeVideoLink" href="#"><input type="image" src="/img/sbcode_btn_sm.gif" onclick="selectVideoId()"></a>
+Adapter Overview | <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/16399566/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Adapter Overview"><img src="/img/udemy_btn_sm.gif" alt="Adapter Overview"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/030ih2rpOhY" target="_blank" title="Adapter Overview"><img src="/img/yt_btn_sm.gif" alt="Adapter Overview"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Adapter Overview"><img src="/img/skillshare_btn_sm.gif" alt="Adapter Overview"/></a>
+Adapter Use Case | <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/25400220/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Adapter Use Case"><img src="/img/udemy_btn_sm.gif" alt="Adapter Use Case"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/fyws-p4WHuk" target="_blank" title="Adapter Use Case"><img src="/img/yt_btn_sm.gif" alt="Adapter Use Case"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Adapter Use Case"><img src="/img/skillshare_btn_sm.gif" alt="Adapter Use Case"/></a>
+Python **isinstance()** Function | <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/25401048/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Python isinstance() Function"><img src="/img/udemy_btn_sm.gif" alt="Python isinstance() Function"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/Y6DzwI8xBA8" target="_blank" title="Python isinstance() Function"><img src="/img/yt_btn_sm.gif" alt="Python isinstance() Function"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Python isinstance() Function"><img src="/img/skillshare_btn_sm.gif" alt="Python isinstance() Function"/></a>
+Python **time** Module | <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/25414958/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Python time Module"><img src="/img/udemy_btn_sm.gif" alt="Python time Module"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/WZTZeGB3o3U" target="_blank" title="Python time Module"><img src="/img/yt_btn_sm.gif" alt="Python time Module"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Python time Module"><img src="/img/skillshare_btn_sm.gif" alt="Python time Module"/></a>
 
 ## Book 
 

chain_of_responsibility/README.md

@@ -1,5 +1,14 @@
 # Chain of Responsibility Design Pattern
 
+## Videos
+
+Section | Video Links
+-|-
+Chain of Responsibility |  <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/16397342/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Chain of Responsibility Overview"><img src="/img/udemy_btn_sm.gif" alt="Chain of Responsibility Overview"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/Ayb6UShWcUU" target="_blank" title="Chain of Responsibility Overview"><img src="/img/yt_btn_sm.gif" alt="Chain of Responsibility Overview"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Chain of Responsibility Overview"><img src="/img/skillshare_btn_sm.gif" alt="Chain of Responsibility Overview"/></a>
+Use Case |  <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/25567252/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Chain of Responsibility Use Case"><img src="/img/udemy_btn_sm.gif" alt="Chain of Responsibility Use Case"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/BxiAyLGAJqw" target="_blank" title="Chain of Responsibility Use Case"><img src="/img/yt_btn_sm.gif" alt="Chain of Responsibility Use Case"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Chain of Responsibility Use Case"><img src="/img/skillshare_btn_sm.gif" alt="Chain of Responsibility Use Case"/></a>
+Python Floor Division | <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/25567266/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Python Floor Division"><img src="/img/udemy_btn_sm.gif" alt="Python Floor Division"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/kR4pYqVpNb0" target="_blank" title="Python Floor Division"><img src="/img/yt_btn_sm.gif" alt="Python Floor Division"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Python Floor Division"><img src="/img/skillshare_btn_sm.gif" alt="Python Floor Division"/></a>
+Accepting User Input | <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/25567278/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Accepting User Input"><img src="/img/udemy_btn_sm.gif" alt="Accepting User Input"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/wC2gBf1D1CU" target="_blank" title="Accepting User Input"><img src="/img/yt_btn_sm.gif" alt="Accepting User Input"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Accepting User Input"><img src="/img/skillshare_btn_sm.gif" alt="Accepting User Input"/></a>
+
 ## Book 
 
 Cover | Links
@@ -113,13 +122,3 @@ if AMOUNT < 10 or AMOUNT % 10 != 0:
 Note that in Python 2.x, use the `raw_input()` command instead of `input()` .
 
 See PEP-3111 : [https://www.python.org/dev/peps/pep-3111/](https://www.python.org/dev/peps/pep-3111/)
-
-## Summary
-
-* The object will propagate through the chain until fully processed.
-* The object does not know that successor or how many will process it.
-* The next successor in the chain is chosen dynamically at runtime depending on logic from the current successor.
-* Successors implement a common interface that makes them work independently of each other, so that they can be used recursively or possibly in a different order.
-* A user wizard, or dynamic questionnaire are other common use cases for the chain of responsibility pattern.
-* The chain of responsibility and [Composite](/composite) patterns are often used together because of their similar approach to hierarchy and possible re-ordering. The Composites parent/child relationship is set in an object's property by a process outside of the class and can be changed at runtime. While with the Chain of Responsibility, each successor runs a dynamic algorithm internally, to decide which successor is next in line.
-* The chain can be fully dynamically created, or it can be set as a default with the possibility of changing at runtime.

command/README.md

@@ -1,5 +1,13 @@
 # Command Design Pattern
 
+## Videos
+
+Section | Video Links
+-|-
+Command Overview |  <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/16397092/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Command Overview"><img src="/img/udemy_btn_sm.gif" alt="Command Overview"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/jOxlrGeAKQ4" target="_blank" title="Command Overview"><img src="/img/yt_btn_sm.gif" alt="Command Overview"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Command Overview"><img src="/img/skillshare_btn_sm.gif" alt="Command Overview"/></a>
+Command Use Case |  <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/25551578/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Command Use Case"><img src="/img/udemy_btn_sm.gif" alt="Command Use Case"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/qDM8ZFcQwZM" target="_blank" title="Command Use Case"><img src="/img/yt_btn_sm.gif" alt="Command Use Case"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Command Use Case"><img src="/img/skillshare_btn_sm.gif" alt="Command Use Case"/></a>
+Single Leading Underscore | <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/25551594/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Single Leading Underscore"><img src="/img/udemy_btn_sm.gif" alt="Single Leading Underscore"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/dDIqJI9aTAc" target="_blank" title="Single Leading Underscore"><img src="/img/yt_btn_sm.gif" alt="Single Leading Underscore"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Single Leading Underscore"><img src="/img/skillshare_btn_sm.gif" alt="Single Leading Underscore"/></a>
+
 ## Book 
 
 Cover | Links
@@ -104,10 +112,3 @@ Private, in C style languages, means that the variable/field/property is hidden
 Python does not have a public/private accessor concept so the variable is not actually private and can still be used outside of the class in other modules. 
 
 It is just a useful construct that you will see developers use as a recommendation not to reference this variable directly outside of this class, but use a dedicated method or property instead.
-
-## Summary
-
-* State should not be managed in the Command object itself.
-* There can be one or more Invokers which can execute the Command at a later time.
-* The Command object is especially useful if you want to UNDO/REDO commands at later time.
-* The Command pattern is similar to the [Memento](/memento) pattern in the way that it can also be used for UNDO/REDO purposes. However, the Memento pattern is about recording and replacing the state of an object, whereas the Command pattern executes a predefined command. E.g., Draw, Turn, Resize, Save, etc. 

composite/README.md

@@ -4,9 +4,9 @@
 
 Section | Video Links
 -|-
-Composite Overview | <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/16511234/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Composite Overview"><img src="/img/udemy_btn_sm.gif" alt="Composite Overview"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/Wihw5oIsh2g" target="_blank" title="Composite Overview"><img src="/img/yt_btn_sm.gif" alt="Composite Overview"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Composite Overview"><img src="/img/skillshare_btn_sm.gif" alt="Composite Overview"/></a>&nbsp;<a id="sbcodeVideoLink" href="#"><input type="image" src="/img/sbcode_btn_sm.gif" onclick="selectVideoId()"></a>
-Composite Use Case | <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/25473576/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Composite Use Case"><img src="/img/udemy_btn_sm.gif" alt="Composite Use Case"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/5MjYcxO_TUk" target="_blank" title="Composite Use Case"><img src="/img/yt_btn_sm.gif" alt="Composite Use Case"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Composite Use Case"><img src="/img/skillshare_btn_sm.gif" alt="Composite Use Case"/></a>&nbsp;<a id="sbcodeVideoLink" href="#"><input type="image" src="/img/sbcode_btn_sm.gif" onclick="selectVideoId()"></a>
-Conditional Expressions | <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/25473582/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Conditional Expressions"><img src="/img/udemy_btn_sm.gif" alt="Conditional Expressions"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/meX3QlEJI2Q" target="_blank" title="Conditional Expressions"><img src="/img/yt_btn_sm.gif" alt="Conditional Expressions"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Conditional Expressions"><img src="/img/skillshare_btn_sm.gif" alt="Conditional Expressions"/></a>&nbsp;<a id="sbcodeVideoLink" href="#"><input type="image" src="/img/sbcode_btn_sm.gif" onclick="selectVideoId()"></a>
+Composite Overview | <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/16511234/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Composite Overview"><img src="/img/udemy_btn_sm.gif" alt="Composite Overview"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/Wihw5oIsh2g" target="_blank" title="Composite Overview"><img src="/img/yt_btn_sm.gif" alt="Composite Overview"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Composite Overview"><img src="/img/skillshare_btn_sm.gif" alt="Composite Overview"/></a>
+Composite Use Case | <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/25473576/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Composite Use Case"><img src="/img/udemy_btn_sm.gif" alt="Composite Use Case"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/5MjYcxO_TUk" target="_blank" title="Composite Use Case"><img src="/img/yt_btn_sm.gif" alt="Composite Use Case"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Composite Use Case"><img src="/img/skillshare_btn_sm.gif" alt="Composite Use Case"/></a>
+Conditional Expressions | <a id="udemyVideoLink" href="https://www.udemy.com/course/design-patterns-in-python/learn/lecture/25473582/?referralCode=7493DBBBF97FF2B0D24D" target="_blank" title="Conditional Expressions"><img src="/img/udemy_btn_sm.gif" alt="Conditional Expressions"/></a>&nbsp;<a id="ytVideoLink" href="https://youtu.be/meX3QlEJI2Q" target="_blank" title="Conditional Expressions"><img src="/img/yt_btn_sm.gif" alt="Conditional Expressions"/></a>&nbsp;<a id="skillShareVideoLink" href="https://skl.sh/34SM2Xg" target="_blank" title="Conditional Expressions"><img src="/img/skillshare_btn_sm.gif" alt="Conditional Expressions"/></a>
 
 ## Book