Jan 17, 2013 · 13 def f(x) -> 123: return x My summary: Simply -> is introduced to get developers to optionally specify the return type of the function. See Python Enhancement Proposal 3107 …

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 …

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() …

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 …

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 …

Mar 15, 2017 · -1 def is executed whenever you hit it in parsing the source file. It defines the function. This means that the body of the function is assigned to the name, the parameters are …

Aug 18, 2020 · The following answer only applies to Python < 3.9 The expression list[int] is attempting to subscript the object list, which is a class. Class objects are of the type of their …

0 A Python function can take in some arguments, take this for example, 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 …

Nov 20, 2020 · 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 …

Jul 8, 2017 · In this code: class A(object): def __init__(self): self.x = 'Hello' def method_a(self, foo): print self.x + ' ' + foo ... the self variable represents the instance of the object itself. Most object …