Formatting String Output

Use + as concatenation operator

Example
Write a program to input a number and show factorial of it

Solution 1

import math
n=int(input("Enter a number"))
msg="Factorial of " + str(n) + " is " + str(math.factorial(n))
print(msg)

Solution 2

Using format specifiers like %d, %s, %f

import math

n=int(input("Enter a number"))

msg="Factorial of %d is %d" % (n,math.factorial(n))

print(msg)

Solution 3

Using placeholders {} with format() function

import math

n=int(input("Enter a number"))

msg="Factorial of {0} is {1}".format(n,math.factorial(n))

print(msg)