What does -> mean in Python function definitions? - Stack Overflow
Jan 17, 2013 · def foo() -> lambda hi: True: "function body" # not a type expressions Beside the first the others have no typing meaning; but it still is valid syntax to hide a lambda definition in …
What is a DEF function for Python - Stack Overflow
Sep 10, 2013 · I am new to coding Python and I just can't seem to understand what a Def function is! I have looked and read many tutorials on it and I still don't quite understand. Can somebody …
How can I return two values from a function in Python?
I would like to return two values from a function in two separate variables. What would you expect it to look like on the calling end? You can't write a = select_choice(); b = select_choice() …
python - What does def main () -> None do? - Stack Overflow
As is, it does absolutely nothing. It is a type annotation for the main function that simply states that this function returns None. Type annotations were introduced in Python 3.5 and are specified …
.def files C/C++ DLLs - Stack Overflow
Jul 21, 2014 · The advantage of def file is that, it helps you to maintain the backword compatibility with the already realsed dlls. i.e it maintains the ordinal numbers for apis. Suppose you add a …
Why should we use -> in def __init__(self, n) -> None:?
Nov 20, 2020 · 2 In python 3.5 appeared type annotation option. def __init__(self, n) -> None: means that __init__ should always return NoneType and it can be quite helpful if you …
How to put a define inside a define function - Stack Overflow
Apr 3, 2015 · def move(): def left(): i.e. If there is only one function inside a function it is feasible to return left() from move function. However in this case there are multiple functions inside move …
How do I define a function with optional arguments?
def add(x,y): return x+ y # calling this will require only x and y add(2,3) # 5 If we want to add as many arguments as we may want, we shall just use *args which shall be a list of more …
python - Why do some functions have underscores - Stack Overflow
May 24, 2024 · The other respondents are correct in describing the double leading and trailing underscores as a naming convention for "special" or "magic" methods. While you can call …
python - Differences between `class` and `def` - Stack Overflow
What is the main difference between class and def in python? Can a class in python interact with django UI (buttons)?