Python check if character is alphanumeric code example

Example 1: how to check if a string is composed only of alphanumeric in python

String.isalnum()

Example 2: isalphanum python

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