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Python | Function classifications on the basis of parameters and return values
Python function classifications: Here, we are going to learn about the python function classifications based on their parameters and return values.
Submitted by Pankaj Singh, on October 11, 2018
There are following types of the functions based on their parameters and return values:
- Function with no argument and no return value
- Function with no argument but return value
- Function with argument and no return value
- Function with arguments and return value
1) Function with no argument and no return value
def sum():
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c=a+b
print("Sum :", c)
def main():
sum()
if __name__=="__main__":
main()
Output
Enter A: 10
Enter B: 20
Sum : 30
2) Function with no argument but return value
def sum():
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c=a+b
return c
def main():
c = sum()
print("Sum :",c)
if __name__=="__main__":
main()
Output
Enter A: 10
Enter B: 20
Sum : 30
3) Function with argument and no return value
def sum(a,b):
c=a+b
print("Sum :", c)
def main():
a = int(input("Enter A: "))
b = int(input("Enter B: "))
sum(a,b)
if __name__=="__main__":
main()
Output
Enter A: 10
Enter B: 20
Sum : 30
4) Function with arguments and return value
def sum(a,b):
c=a+b
return c
def main():
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = sum(a,b)
print("Sum :",c)
if __name__=="__main__":
main()
Output
Enter A: 10
Enter B: 20
Sum : 30
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