Calling Function of Custom Python File in Python

Calling Function of custom Python (.py) file in Python programming. Functions are used to divide a large program into sub-programs for easy control. All these sub-programs are called sub-functions of the program.

Program Adding .py File and Calling his Functions

First of all goto left side Project pane and right click on MyProgram and goto New -> and select Python File.
In New Python file dialog in Name: write MyFile and click on OK button.
Write the following code in MyFile.py file.

def fun(): #fun()' is name of Function.
    print("This is Simple Function in MyFile")
def fun2(): #'fun2()' is name of Function.
    print("This is Another Simple Function in MyFile")

Write the following code in main program MyProgram.py file.

import MyFile #importing 'MyFile' File.
MyFile.fun() #calling 'fun()' function of 'MyFile' File.
MyFile.fun2() #calling 'fun2()' function of 'MyFile' File.

Program Adding .py Files and Calling his Functions

Write the following code in main program MyFile.py file.

def fun(): #fun()' is name of Function.
    print("This is Simple Function in MyFile")
def fun2(): #'fun2()' is name of Function.
    print("This is Another Simple Function in MyFile")

Write the following code in main program MyFile2.py file.

def fun3(): #fun3()' is name of Function.
    print("This is Simple Function in MyFile2")
def fun4(): #'fun4()' is name of Function.
    print("This is Another Simple Function in MyFile2")

Write the following code in main program MyProgram.py file.

import MyFile #importing 'MyFile' File.
import MyFile2 #importing 'MyFile2' File.
MyFile.fun() #calling 'fun()' function of 'MyFile' File.
MyFile.fun2() #calling 'fun2()' function of 'MyFile' File.
MyFile2.fun3() #calling 'fun3()' function of 'MyFile2' File.
MyFile2.fun4() #calling 'fun4()' function of 'MyFile2' File.

Program Adding .py Files and Calling his Functions Another Method

Write the following code in MyFile.py file.

def fun(): #fun()' is name of Function.
    print("This is Simple Function in MyFile")
def fun2(): #'fun2()' is name of Function.
    print("This is Another Simple Function in MyFile")

Write the following code in MyFile2.py file.

def fun(): #fun()' is name of Function.
    print("This is Simple Function in MyFile2")
def fun2(): #'fun2()' is name of Function.
    print("This is Another Simple Function in MyFile2")

Write the following code in MyProgram.py file.

import MyFile #importing 'MyFile' File.
import MyFile2 #importing 'MyFile2' File.
MyFile.fun() #calling 'fun()' function of 'MyFile' File.
MyFile.fun2() #calling 'fun2()' function of 'MyFile' File.
MyFile2.fun() #calling 'fun()' function of 'MyFile2' File.
MyFile2.fun2() #calling 'fun2()' function of 'MyFile2' File.

Program Calling .py Files Functions from One Another

Write the following code in MyFile.py file.

import MyFile2 #importing 'MyFile2' File.
def fun(): #fun()' is name of Function.
    print("This is Simple Function in MyFile")
    MyFile2.fun2() #calling 'fun2()' function of 'MyFile2' File.

Write the following code in MyFile2.py file.

def fun2(): #'fun2()' is name of Function.
    print("This is Simple Function in MyFile2")
    print("After Calling Functions")

Write the following code in MyProgram.py file.

import MyFile #importing 'MyFile' File.
print("Before Calling Functions")
MyFile.fun() #calling 'fun()' function of 'MyFile' File.