Python Notes

Basics

• Math Operators
• Common Data Types
• String Concatenation and Replication
• Variables
• Common Functions
• Text and Number Equivalence

Flow Control

• Boolean Values
• Comparison Operators
• Boolean Operators

Elements of Flow Control

• Conditions
• Code Blocks
• Program Execution

Flow Control Statements

• if
• else
• elif
• while loops
• break
• continue
• for loops

Importing Modules

• Built-in Functions
• Standard Library
• Importing Modules

Ending Programs Early

• sys.exit()

Functions

• Functions
• def Statement
• return Statement
• None value
• Keyword Arguments
• The Call Stack
• Local and Global Scope
• Exception Handling

Lists

• List
• Index
• Slice
• len()
• List Concatenation and Replication
• del Statement
• in and not in Operators
• Multiple Assignment Trick
• enumerate()
• random Module

Augmented Assignment Operators

• Augmented Assignment Operators

Methods

• Method
• append() and insert()
• remove()
• sort()
• reverse()
• pop()

Sequence Data Types

• Mutable Data Type
• Immutable Data Type
• Tuple
• Converting Types with list() and tuple()

References

• Reference
• id()
• Passing References
• copy Module

Dictionaries and Structured Data

• Dictionary Data Type
• keys()
• values()
• items()
• Check if key value exists in a dict
• get()
• setdefault()

Manipulating Strings

• String Literals
• Escape Characters
• Raw Strings
• Multiline Strings
• Indexing and Slicing Strings
• in and not in String Operators

Inserting values in strings

• String Interpolation
• F-Strings

Useful String Methods

• upper()
• lower()
• isupper()
• islower()
• isX() Methods
• startswith()
• endswith()
• join()
• split()
• partition()
• swapcase()

Justifying text

• rjust(), ljust(), and center()

Removing whitespace

• strip(), rstrip(), and lstrip()

Unicode characters

• ord() and chr()

Copying and Pasting Strings

• pyperclip Module

Regex

• Regular Expressions in Python

Input Validation

• PyInputPlus Module

Reading and Writing Files

Files and File-paths

• pathlib Module

File Reading and Writing

• Opening Files
• Reading Files
• Writing Files

Saving data

• Saving Variables With shelve
• Saving Variables With pprint

Organizing Files

• shutile Module

Classes

• Creating and Using a Class
• Class Inheritance
• Object Oriented Programming
• Importing Classes
• Styling Classes

Style

• PEP 8