🔒 Functions

[hybrid solar]

Does it matter where i place my variables when doing functions? num1 and num2 work at the top but operation is at the bottom, it still works when i move num1 and num2 to the bottom but im not sure whats best to do

[halcyon garden]

@hybrid solar

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[crystal bough]

When a function is defined, the Python bytecode compiler determines how to fetch a variable x that appears in it, based on these rules:

• If there is a global x declaration, x comes from and is assigned to the x global variable module.
• If there is a nonlocal x declaration, x comes from and is assigned to the x local variable of the nearest surrounding function where x is defined.
• If x is a parameter or is assigned a value in the function body, then x is the local variable.
• If x is referenced but is not assigned and is not a parameter:
• x will be looked up in the local scopes of the surrounding function bodies (nonlocal scopes).
• If not found in surrounding scopes, it will be read from the module global scope.
• If not found in the global scope, it will be read from __builtins__.__dict__.

[fossil spire]

I think it's usually a good idea to put the variables near where you're gonna use them. Like, if you stick num1 and num2 inside the function, it could get confusing later on, you know? So, I'd say keeping them up top makes things clearer and easier to manage, I guess.

[hybrid solar]

Thank you both!

!close

[halcyon garden]

Python help channel closed

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