- What covariance, contravariance, and invariance are and why you should know them to write better code. Multiple Python examples included https://blog.daftcode.pl/covariance-contravariance-and-invariance-the-ultimate-python-guide-8fabc0c24278 18 comments programming
Linking pages
Linked pages
- What are covariance and contravariance? | Stephan Boyer https://www.stephanboyer.com/post/132/what-are-covariance-and-contravariance 158 comments
- PEP 484 – Type Hints | peps.python.org https://www.python.org/dev/peps/pep-0484/ 143 comments
- Liskov substitution principle - Wikipedia http://en.wikipedia.org/wiki/Liskov_substitution_principle 69 comments
- typing â Support for type hints — Python 3.11.5 documentation https://docs.python.org/3/library/typing.html 52 comments
- Wizards and warriors, part one | Fabulous adventures in coding https://ericlippert.com/2015/04/27/wizards-and-warriors-part-one/ 50 comments
- Built-in Types — Python 3.12.2 documentation https://docs.python.org/3/library/stdtypes.html#boolean-operations-and-or-not 45 comments
- Medium https://medium.com/m/signin?isDraft=1&operation=login&redirect=https%3A%2F%2Fmedium.com%2F%40jamie_34747%2F79d382edf22b%3Fsource%3D 19 comments
- PEP 483 – The Theory of Type Hints | peps.python.org https://www.python.org/dev/peps/pep-0483/ 1 comment
- Covariance and contravariance (computer science) - Wikipedia https://en.wikipedia.org/wiki/Covariance_and_contravariance_(computer_science) 0 comments
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