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  1. mean in Python function definitions? - Stack Overflow

    Jan 17, 2013 · funcdef: 'def' NAME parameters ['->' test] ':' suite The optional 'arrow' block was absent in Python 2 and I couldn't find any information regarding its meaning in Python 3. It …

  2. oop - What do __init__ and self do in Python? - Stack Overflow

    Jul 8, 2017 · We could use any other legal Python name, but you will likely get tarred and feathered by other Python programmers if you change it to something else. __init__ is a …

  3. What is a DEF function for Python - Stack Overflow

    Sep 10, 2013 · 14 def isn't a function, it defines a function, and is one of the basic keywords in Python. For example:

  4. python - What is the purpose of the `self` parameter? Why is it …

    For a language-agnostic consideration of the design decision, see What is the advantage of having this/self pointer mandatory explicit?. To close debugging questions where OP omitted a …

  5. How can I return two values from a function in Python?

    Values aren't returned "in variables"; that's not how Python works. A function returns values (objects). A variable is just a name for a value in a given context. When you call a function and …

  6. Explicitly Define Datatype in Python Function - Stack Overflow

    I want to define 2 variables in python function and define them as float explicitly. However, when i tried to define them in the function parameter, it's showing syntax error.

  7. Why do we use __init__ in Python classes? - Stack Overflow

    Classes in Python make up of collections of different data, that behave similarly. Class of dogs consists of Fido and Spot and 199999999998 other animals similar to them, all of them peeing …

  8. python - How do I define a function with optional arguments?

    466 I have a Python function which takes several arguments. Some of these arguments could be omitted in some scenarios.

  9. python - Why use def main ()? - Stack Overflow

    Oct 28, 2010 · It will be possible to import that python code as a module without nasty side-effects. This means it will be possible to run tests against that code. This means we can import …

  10. How to specify multiple types using type-hints - Stack Overflow

    Sep 20, 2025 · I have a function in python that can either return a bool or a list. Is there a way to specify the types using type hints? For example, is this the correct way to do it? def foo(id) …