Merge pull request #3005 from enkidevs/more-on-lists

More on lists

CHANGELOG.md

@@ -62,6 +62,7 @@ Types of change:
 ### Changed
 - [Html - Link Relative Paths - Change part of PQ as it wasn't worder properly](https://github.com/enkidevs/curriculum/pull/2985)
 - [Python - Format Text Paragraphs With Textwrap - Make the fill method more clear](https://github.com/enkidevs/curriculum/pull/2981)
+- [Python - More On Lists - Move single-line commands to a single line, update indentation in codeblocks from 4 to 2 spaces](https://github.com/enkidevs/curriculum/pull/3005)
 - [Python - Classes I - Move single-line commands to a single line, update indentation in codeblocks from 4 to 2 spaces](https://github.com/enkidevs/curriculum/pull/2992)
 - [Python - Looping - Move single-line commands to a single line, update indentation in codeblocks from 4 to 2 spaces](https://github.com/enkidevs/curriculum/pull/3000)
 - [Python - Meet Python - Move single-line commands to a single line, update indentation in codeblocks from 4 to 2 spaces](https://github.com/enkidevs/curriculum/pull/3003)

python/python-core/more-on-lists/lists-vs-dictionaries.md

@@ -47,7 +47,7 @@ dict = {
 }
 ```
 
-Because elements stored in **lists** can be accessed using **indices**, the retrieving of an element will be done in `O(n)` in the worst case scenario. When using **dictionaries**, indices are replaced by **keys** (hashable types). This means that retrieving a certain element would be done in `O(1)` as we can find each **value** associated to each **key** directly.
+Because elements stored in **lists** can be accessed using **indices**, the retrieving of an element will be done in `O(n)` in the worst-case scenario. When using **dictionaries**, indices are replaced by **keys** (hashable types). This means that retrieving a certain element would be done in `O(1)` as we can find each **value** associated to each **key** directly.
 
 Let's see an example:
 

python/python-core/more-on-lists/using-lists-as-queues.md

@@ -37,20 +37,20 @@ Let's define a **queue** class now:
 
 ```py
 class Queue:
-    def __init__(self):
-        self.items = []
+  def __init__(self):
+    self.items = []
 
-    def isEmpty(self):
-        return self.items == []
+  def isEmpty(self):
+    return self.items == []
 
-    def enqueue(self, item):
-        self.items.insert(0,item)
+  def enqueue(self, item):
+    self.items.insert(0,item)
 
-    def dequeue(self):
-        return self.items.pop()
+  def dequeue(self):
+    return self.items.pop()
 
-    def size(self):
-        return len(self.items)
+  def size(self):
+    return len(self.items)
 ```
 
 > 💡 Instead of `size`  you can use `__len__`. It will allow you to use `len(myQueue)` instead of `myQueue.size()`. Check the *Learn More* section for a playground link. We've prepared both queue classes in there so you can test them out and decide which one you want to use.