Multiple Assignments in Python

Pubblicato il: 28 agosto 2021
sul canale di: mCoding
65,605
3.1k

Chain those equals signs!

Python allows multiple assignments, or chained assignments, to assign multiple variables or expressions at once. This can be a useful tool but it is also a source of confusion when the multiple assignments involve the same name multiple times or when the assignment target is mutable. The assignments are evaluated right hand side first, then left to right, assigning each expression to the target in turn. This differs from many other programming languages and it is also different from the way Pythons assignment expressions (the walrus operator (:=) colon equals) works.

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Source code: https://github.com/mCodingLLC/VideosS...
Assignment statement docs: https://docs.python.org/3/reference/s...
Evaluation order docs: https://docs.python.org/3/reference/e...
Assignment expressions PEP: https://www.python.org/dev/peps/pep-0...

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CHAPTERS
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0:00 Intro
0:49 Multiple assignment example
2:12 Tricky example
4:54 Assignment expressions
6:56 Quiz time


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