Example:2
Here we want to create a module name “example1.py” which will contain functions of for the following operations:
1. Sum of 2 nos
2. Prod of 2 nos
3. Difference between 2 nos
And further, we will write a menu-driven program to access these functions from the module.
filename: example1.py
def sum(a,b):
s=a+b
print("sum = ",s)
def prod(a,b):
p=a*b
print("prod = ",p)
def diff(a,b):
if(a>b):
d=a-b
else:
d=b-a
print("diff = ",d)
Method:1
All the functions in the module are imported directly and used in the program.
syntax used to access functions
module.function_name
import example1
a=0
b=0
c=0
while True:
print("1. sum of 2 nos")
print("2. prod of 2 nos")
print("3. diff between 2 nos")
print("4. Exit")
print("enter your choice ")
ch=int(input())
if(ch==1):
a=int(input("Enter 1st no "))
b=int(input("Enter 2nd no "))
example1.sum(a,b)
elif(ch==2):
a=int(input("Enter 1st no "))
b=int(input("Enter 2nd no "))
example1.prod(a,b)
elif(ch==3):
a=int(input("Enter 1st no "))
b=int(input("Enter 2nd no "))
example1.diff(a,b)
elif(ch==4):
print("Thank you")
break
else:
print("Invalid choice")
Method:2
All the functions in the module are imported by using name and used in the program.
syntax used to access functions
function_name()
from example1 import sum
from example1 import prod
from example1 import diff
a=0
b=0
c=0
while True:
print("1. sum of 2 nos")
print("2. prod of 2 nos")
print("3. diff between 2 nos")
print("4. Exit")
print("enter your choice ")
ch=int(input())
if(ch==1):
a=int(input("Enter 1st no "))
b=int(input("Enter 2nd no "))
sum(a,b)
elif(ch==2):
a=int(input("Enter 1st no "))
b=int(input("Enter 2nd no "))
prod(a,b)
elif(ch==3):
a=int(input("Enter 1st no "))
b=int(input("Enter 2nd no "))
diff(a,b)
elif(ch==4):
print("Thank you")
break
else:
print("Invalid choice")
