PYTHON

all alphanumeric characters for python python

alpha_numeric = "abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"

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

String.isalnum()

python check if a character is alphanumeric

for i in s:
    if i.isalnum():
        print(True)
        break

python check for alphanumeric characters

def isalphanumeric(char):
	return(ord('A') <= ord(char) <= ord('Z') or
           ord('a') <= ord(char) <= ord('z') or
           ord('0') <= ord(char) <= ord('9'))

Python String with Alphanumeric characters

# Program to convert Alphanumeric characters to lowercase
text= "Its 2:00PM IST in India"
text2="HELLO WORLD"
print('Original String: ',text)
print('Lowercase String: ',text.lower())