Why Can’t I Call Functions Before They’re Defined in Python?

Funny enough, you could consider using a "main" function to structure your code differently. Define all your functions at the bottom and call them from a 'main' function at the top. Just a little trick to work around the need to define everything beforehand, though it might confuse others reading your code.

Python is an interpreted language, so it processes the code from top to bottom. If a function hasn't been defined yet, the interpreter doesn't know about it, which is why you can't call it before defining it. This is different from JavaScript, which allows function hoisting. Python takes a more straightforward approach by following a strict order.

It's really about the nature of Python being interpreted. Unlike compiled languages that can look ahead and handle out-of-order definitions, Python just runs through the code from start to finish. If you're coming from JavaScript, you might miss the convenience of function hoisting, but Python tries to keep things simple and clear, which I think can be a good thing.

Exactly! When you call a function before it’s defined, the interpreter just hasn't reached that point in the file yet. This organization helps keep code clearer and can enforce a logical structure. In many cases, it encourages better coding practices, but I get that it can be a bit frustrating if you're used to other languages.