Learning the Basics of Python

• Chad Hansen. Python Keywords: An Introduction. realpython, 6/2020.*
• David Amos. Numbers in Python. realpython, 9/2020.
• Wolf. Null in Python: Understanding Python’s NoneType Object. realpython, 2/2020.
• Leodanis Pozo Ramos. Python’s reduce(): From Functional to Pythonic Style. realpython, 6/2020.*
• Leodanis Pozo Ramos. Python eval(): Evaluate Expressions Dynamically. realpython, 5/2020.*
• Alex Ronquillo. How to Use any() in Python. realpython, 3/2020.*
• Bryan Weber. Python enumerate(): Simplifying Looping with Counters. realpython, 11/2020.*
• Moshe Zadka. Python Booleans: Optimize Your Code With Truth Values. realpython, 10/2020.
• John Sturtz. Namespaces and Scope in Python. realpython, 7/2020.
• Dan Bader. Python’s Instance, Class, and Static Methods Demystified. realpython.
• John Sturtz. Basic Input, output, and String Formatting in Python. realpython.
• Kyle Stratis. How to Use Generators and yield in Python. realpython.*
• James Timmins. When to Use a List Comprehension in Python. realpython.
• Davide Mastromatteo. Python args and kwargs: Demystified. realpython.
• Mike Driscoll. Python sleep(): How to Add Time Delays to Your Code. realpython.
• Jaya Zhane. Writing Comments in Python (Guide). realpython.
• Bartosz Zaczynski. Your Guide to the Python print() Function. realpython.
• Geir Arne Hjelle. Python import: Advanced Techniques and Tips. realpython, 7/2020.
• John Sturtz. Python Program Lexical Structure. realpython.

Variables

• John Sturtz. Variables in Python. Real Python.
  • Covers variable assignment, types, object references and identity, variable naming, and reserved words.

Strings

• Kyle Stratis. Splitting, Concatenating, and Joining Strings in Python. Real Python.
  • Includes separators, maxsplit, and .join() in addition to above.
• Dan Bader. Python String Formatting Best Practices. Real Python.
  • Covers four different methods of formatting strings including: % Operator, str.format, string interpolation / f-Strings, and template strings.
  • Also provides direction on when to use each method.
• John Sturtz. A Guide to the Newer Python String Formatting Techniques. Real Python, 2/2020.
• John Sturtz. Strings and Character Data in Python. Real Python.
  • Covers string manipulation (operations, built-in functions, indexing, slicing, interpolating variables, modifying strings, and built-in methods) as well as bytes Objects (defining, operations on, and bytearray Objects).

Files

• James Mertz. Reading and Writing Files in Python (Guide). Real Python.
  • Covers paths, line endings, character encodings, opening and closing, text/binary/raw file types, iterating over lines, working with bytes, __file__, etc.
• Vuyisile Ndlovu. Working with Files in Python. Real Python.
  • Covers “with open(…) as …”, directory listings, file attributes, creating directories, filename pattern matching, directory traversal, temporary files/dirs, deleting/copying/moving/renaming, archiving, etc.
• Jon Fincher. Reading and Writing CSV Files in Python. Real Python.
• Yong Cui. A Cheat Sheet on Reading and Writing Files in Python. betterprogramming, 1/2020.
• Shantnu Tiwari. Using Pandas to Read Large Excel Files in Python. Real Python.

Conditionals / Branching / Iteration

• John Sturtz. Python “for” Loops (Definite Iteration). Real Python.
  • Covers numeric range, three-expression, and collection-based or iterator-based loops; iterating through a dictionary, the range function, break/continue statements, and the else clause.
• John Sturtz. Python “white” Loops (Indefinite Iteration). realpython.
• Lisa Tagliaferri. How to Use Break, Continue, and Pass Statements when Working with Loops in Python 3. digitalocean, 1/2017.
• John Sturtz. Conditional Statements in Python. realpython.

Operators

• Leodanis Pozo Ramos. How to Use the Python or Operator. realpython, 2019.
• Jason Van Schooneveld. Python Modulo in Practice: How to Use the % Operator. Real Python, 10/2020.

Operators and Expressions

• John Sturtz. Operators and Expressions in Python. Real Python.*
  • Covers arithmetic, comparison, logical, bitwise, identity, and augmented assignment operators. Also operator precedence.

Python Basic Data Structures

• Python 101: Learning About Lists. Python Library, 3/2020.*
• Dan Bader. Common Python Data Structures. Real Python, 8/2020.*
  • Covers dictionaries, maps, hash tables, arrays (list, tuple, array.array, str, bytes, bytearray), records, structs, and data transfer objects, sets, multisets, stacks (LIFOs), queues (FIFOs), and priority queues.
• Pedro Pregueiro. Linked Lists in Python: An Introduction. Real Python, 4/2020.
• John Sturtz. Dictionaries in Python. Real Python.
• John Sturtz. Sets in Python. Real Python.
• John Sturtz. Basic Data Types in Python. Real Python.*
  • Covers integers, floating-point numbers, complex numbers, strings (escape sequences, raw, and triple-quoted), boolean type/context/”truthiness”, and built-in functions for math, type conversion, iterables and iterators, composite data type, classes, attributes, inheritance, input/output, variables, references, and scope.

Functions

• John Sturtz. Defining Your Own Python Function. realpython, 3/2020.
• Bryan Weber. Defining Main Functions in Python. realpython.

Map

• Leodanis Pozo Ramos. Python’s map(): Processing Iterables Without a Loop. realpython, 9/2020.*
• Kathryn Hancox. How to Use the Python Map Function. digitalocean, 8/2020.

Loops

• John Sturtz. Python “for” Loops (Definite Iteration). realpython.
• John Sturtz. Python “while” Loops (Indefinite Iteration). realpython.

OOP

• Joska de Langen. Python ‘!=’ Is Not ‘is not’: Comparing Objects in Python. realpython, 1/2020.
• David Amos. Object-Oriented Programming (OOP) in Python 3. realpython, 7/2020.
• Malay Agarwal. Operator and Function Overloading in Custom Python Classes. realpython.
• Dan Bader. Shallow vs Deep Copying of Python Objects. realpython.
• Kyle Stratis. Supercharge Your Classes with Python super(). realpython.
• Isaac Rodriguez. Inheritance and Composition: A Python OOP Guide. realpython.

Strings

• John Sturtz. A Guide to the Newer Python String Format Techniques. realpython, 2/2020.*
• John Sturtz. Strings and Character Data in Python. realpython.
• Kyle Stratis. Splitting, Concatenating, and Joining Strings in Python. realpython.
• Joanna Jablonski. Python’s 3’s f-Strings: An Improved String Formatting Syntax (Guide). realpython.

Lambda Functions

• Andre Burgaud. How to Use Python Lambda Functions. realpython.

Releases

• Geir Arne Hjelle. Python 3.9: Cool New Features for You to Try. realpython, 10/2020.
• Geir Arne Hjelle. Cool New Features in Python 3.8. realpython.
• Geir Arne Hjelle. Cool New Features in Python 3.7. realpython.

Other

• Bartosz Zaczynski. Your Guide to the Python print() Function. Real Python, 8/2019.
  • In-depth guide to print() from the basics to advanced.
• Brad Solomon. Generating Random Data in Python (Guide). Real Python.
• Jaya Zhane. Writing Comments in Python (Guide). Real Python.
• Mike Driscoll. Python sleep(): How to Add Time Delays To Your Code. realpython, 2019.
• Joanna Jablonski. The Python range() Function Guide. Real Python.
• David Fundakowski. How to Use sorted() and sort() in Python. Real Python.
• Alex Ronquillo. The Python Square Root Function. Real Python.