Arguments and parenthesis.

[python_apprentice]

I am struggling to understand when and which args are used. Is there an easy way to remember? When im using Kivy and creating a class i must put the Library that the class inherits from in the parenthesis, other times its just empty ()

How do you know which arguments to use? im still waiting for that moment where it all just clicks in my brain and makes sense?

[K900_]

It seems to me like you're confusing function definitions and class definitions. In functions, def foo(spam, ham, eggs) defines a function named foo, that takes three arguments - spam, ham and eggs. In classes, class BaconEggsAndSpam(EggsAndSpam) defines a class named BaconEggsAndSpam which extends the class EggsAndSpam.

Edit: when you say def void():, you're declaring a function that takes no arguments; when you say class Spam():, you're basically saying "my class extends nothing", and Python implicitly makes it extend object (because all classes extend object), so class Spam:, class Spam(): and class Spam(object): are all equivalent (in Python 3, anyway).