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Python Mutability (programming.dev)
submitted 1 month ago by bterwijn@programming.dev to c/python@programming.dev
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[-] wewbull@feddit.uk 2 points 1 month ago

As I would expect. Does the result surprise people?

If so, rename the arguments to fun() to be r, s, t, and u. Just inside the function. Does the obvious two scopes now make it clearer?

[-] shape_warrior_t@programming.dev 7 points 1 month ago

The fact that x += y modifies lists in place might be surprising if you're expecting it to be exactly equivalent to x = x + y.

[-] bterwijn@programming.dev 3 points 1 month ago

Yes, that is a surprise to many, in other languages 'x+=y' and 'x=x+y' are the same.

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this post was submitted on 02 Sep 2025
53 points (94.9% liked)

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