Python call function from another file

Simply you have to import the function from another file using the import keyword and then call the function in Python.

First, import function from file.py:

from file import function

Later, call the function using:

function(a, b)

Note: 1. That file is one of Python’s core modules, so change the filename of file.py to something else.
2. if you’re trying to import functions from a.py to a file called b.py, you will need to make sure that a.py and b.py are in the same directory.

Python call function from another file example

A simple example code calls a function from another py file.

main.py

import MathMethod as MM

print(MM.Add(200, 1000))

print(MM.subtract(1000, 500))

MathMethod.py

def Add(a,b):
   return a+b

def subtract(a,b):
  return a-b

Output:

Do comment if you have any doubts or suggestions on this Python function topic.

Note: IDE: PyCharm 2021.3.3 (Community Edition)

Windows 10

Python 3.10.1

All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.