Why Static Typing Matters in Python
In this video, we look at why static typing matters in Python and how type hints help you catch bugs before your code ever runs.
00:00 Introduction
03:26 Large Codebase
04:19 Latent Bug
08:56 Under the Hood
11:34 Practical Tips
13:00 Python Typing History
15:35 Final Thoughts
Chapters in Pip Install Series
1. Why Static Typing Matters in Python — • Why Static Typing Matters in Python
2. When 100% Test Coverage Isn't Enough — • When 100% Test Coverage Isn't Enough
3. Age Is NOT Just a Number or: How I Learned to Love Parsing in Python - • Age Is NOT Just a Number or: How I Learned...
Pip Install Series — • Pip Install Series
Code Samples — https://github.com/PythonInProduction...
Type Checkers
mypy — https://www.mypy-lang.org/
Pyright — https://microsoft.github.io/pyright
ty — https://docs.astral.sh/ty/
Notebook ↔ Python
jupytext — https://jupytext.readthedocs.io/en/la...
nbqa — https://nbqa.readthedocs.io/en/latest...
marimo — https://docs.marimo.io/
Software Design Principles
Open-Closed Principle — https://en.wikipedia.org/wiki/Open%E2...
SOLID — https://en.wikipedia.org/wiki/SOLID
Python & Historical Context
CPython — https://github.com/python/cpython
Python History — https://en.wikipedia.org/wiki/Python_...
BDFL — https://en.wikipedia.org/wiki/Benevol...
Some Python Type Hints PEPs
PEP 3107 – Function Annotations — https://peps.python.org/pep-3107/
PEP 484 – Type Hints — https://peps.python.org/pep-0484/
PEP 526 – Variable Annotations — https://peps.python.org/pep-0526/
PEP 544 – Structural Subtyping — https://peps.python.org/pep-0544/
PEP 586 – Literal Types — https://peps.python.org/pep-0586/
PEP 589 – TypedDict — https://peps.python.org/pep-0589/
PEP 591 – Final Keyword — https://peps.python.org/pep-0591/
PEP 604 – Union Types as X | Y — https://peps.python.org/pep-0604/
PEP 612 – Parameter Specification Variables — https://peps.python.org/pep-0612/
PEP 613 – Explicit Type Aliases — https://peps.python.org/pep-0613/
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