check if character is alphanumeric python code example

Example 1: all alphanumeric characters for python python

alpha_numeric = "abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"

Example 2: how to check if a string is composed only of alphanumeric in python

String.isalnum()

Example 3: isalphanum python

s="abc 123"
s.isalnum() 
 #returns
  False #as we have space in it
  
s1="abc123"
s1.isalnum()
#returns
	True