In the syntax module_name.var , what is var?

Answer 1

shreya das You can use dir or vars functions.

dir(module_name) ---> list of the variable names.
vars(module_name) ---> dictionary of the variables in name: value format.

Answer 2

Var is a property i.e variable or method defined in that module.

ex : from math module
math.PI is constant variable.
math.pow(x,y) is a method..

Answer 3

File extension?

Where did you see that?

Answer 4

How do I get to know the functions that are already defined in a prefined module?