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Create and Import Modules in Python (with Examples)
Create and Import Python Modules: In this tutorial, we will learn how to create and import Python modules. Learn the concept of writing and importing your modules with the help of examples.
By Pankaj Singh Last updated : June 21, 2023
Create a Python Module
It's very simple to create a Python module, you have to write Python code in a file and save that file with .py file extension.
Example to Create Python Modules
This is an example of creating module in python. Module files are special file that are used as library files and can be accessed in another file.
In this example, there are two module files "mycheck.py" and "mymath.py" – the modules contains the functions related to the checking the numbers and mathematical operations
Module 1: pycheck.py
def iseven(n):
ans=False
if n%2==0:
ans=True
return ans
def isodd(n):
ans=False
if n%2==1:
ans=True
return ans
def isprime(n):
ans=False
c=0
for i in range(1,n+1):
if n%i==0:
c=c+1
if c==2:
ans=True
return ans
def ispalindrome(n):
ans=False
m=n
rev=0
while n>0:
dig=n%10
rev = rev*10+dig
n=n//10
if rev==m:
ans=True
return ans
Module 2: mymath.py
def sum(a,b):
c=a+b
return c
def difference(a,b):
c=a-b
return c
def product(a,b):
c=a*b
return c
def quotient(a,b):
c=a/b
return c
def remainder(a,b):
c=a%b
return c
Import a Python Module
To import a Python module, you have to use the import statement followed by the module name.
Examples to Import Python Modules
Now, we are implementing the operations from the module functions in the below examples:
Example 1: menu.py
In this program all the functions of both modules i.e. mycheck.py/mymath.py are get loaded in menu.py’s memory and have to use module name as parent to access child functions.
import os
import mymath
import mycheck
def main():
ans=True
while ans:
os.system('cls')
print("MENU")
print("--------------------------------------")
print("1.Add")
print("2.Substract")
print("3.Multiply")
print("4.Divide")
print("5.Even Check")
print("6.Odd Check")
print("7.Prime Check")
print("8.Palindrome Check")
print("9.Exit")
print("-------------------------------------")
ch=int(input("Enter choice(1-9):"))
print("-------------------------------------")
if ch==1:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = mymath.sum(a,b)
print("Sum :",c)
elif ch==2:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = mymath.difference(a,b)
print("difference :",c)
elif ch==3:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = mymath.product(a,b)
print("Product :",c)
elif ch==4:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = mymath.quotient(a,b)
print("Quotient :",c)
elif ch==5:
n = int(input("Enter N: "))
if mycheck.iseven(n)==True:
print(n,"is Even")
else:
print(n,"is Not Even")
elif ch==6:
n = int(input("Enter N: "))
if mycheck.isodd(n)==True:
print(n,"is Odd")
else:
print(n,"is Not Odd")
elif ch==7:
n = int(input("Enter N: "))
if mycheck.isprime(n)==True:
print(n,"is Prime")
else:
print(n,"is Not Prime")
elif ch==8:
n = int(input("Enter N: "))
if mycheck.ispalindrome(n)==True:
print(n,"is Palindrome")
else:
print(n,"is Not Palindrome")
elif ch==9:
ans=False
print("-------------------------------------")
input("Press any key.....")
if __name__=="__main__":main()
Example 1: menu2.py
In this program all the functions of both modules i.e. mycheck.py/mymath.py are get loaded in menu2.py’s memory and child functions can be called directly
from os import *
from mymath import *
from mycheck import *
def main():
ans=True
while ans:
system('cls')
print("MENU")
print("--------------------------------------")
print("1.Add")
print("2.Substract")
print("3.Multiply")
print("4.Divide")
print("5.Even Check")
print("6.Odd Check")
print("7.Prime Check")
print("8.Palindrome Check")
print("9.Exit")
print("-------------------------------------")
ch=int(input("Enter choice(1-9):"))
print("-------------------------------------")
if ch==1:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = sum(a,b)
print("Sum :",c)
elif ch==2:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = difference(a,b)
print("difference :",c)
elif ch==3:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = product(a,b)
print("Product :",c)
elif ch==4:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = quotient(a,b)
print("Quotient :",c)
elif ch==5:
n = int(input("Enter N: "))
if iseven(n)==True:
print(n,"is Even")
else:
print(n,"is Not Even")
elif ch==6:
n = int(input("Enter N: "))
if isodd(n)==True:
print(n,"is Odd")
else:
print(n,"is Not Odd")
elif ch==7:
n = int(input("Enter N: "))
if isprime(n)==True:
print(n,"is Prime")
else:
print(n,"is Not Prime")
elif ch==8:
n = int(input("Enter N: "))
if ispalindrome(n)==True:
print(n,"is Palindrome")
else:
print(n,"is Not Palindrome")
elif ch==9:
ans=False
print("-------------------------------------")
input("Press any key.....")
if __name__=="__main__":main()
Example 3: menu3.py
In this program only few functions of both modules i.e. mycheck.py/mymath.py are get Loaded in menu3.py's memory and child functions can be called directly
from os import system
from mymath import sum,difference
from mycheck import iseven,isprime,ispalindrome
def main():
ans=True
while ans:
system('cls')
print("MENU")
print("--------------------------------------")
print("1.Add")
print("2.Substract")
print("3.Even Check")
print("4.Prime Check")
print("5.Palindrome Check")
print("6.Exit")
print("-------------------------------------")
ch=int(input("Enter choice(1-6):"))
print("-------------------------------------")
if ch==1:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = sum(a,b)
print("Sum :",c)
elif ch==2:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = difference(a,b)
print("difference :",c)
elif ch==3:
n = int(input("Enter N: "))
if iseven(n)==True:
print(n,"is Even")
else:
print(n,"is Not Even")
elif ch==4:
n = int(input("Enter N: "))
if isprime(n)==True:
print(n,"is Prime")
else:
print(n,"is Not Prime")
elif ch==5:
n = int(input("Enter N: "))
if ispalindrome(n)==True:
print(n,"is Palindrome")
else:
print(n,"is Not Palindrome")
elif ch==6:
ans=False
print("-------------------------------------")
input("Press any key.....")
if __name__=="__main__":main()
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