check if correct identifier in python
# Python program to identify the identifier
# import re module
# re module provides support
# for regular expressions
import re
# Make a regular expression
# for identify valid identifier
regex = '^[A-Za-z_][A-Za-z0-9_]*'
# Define a function for
# identifying valid identifier
def check(string):
# pass the regualar expression
# and the string in search() method
if(re.search(regex, string)):
print("Valid Identifier")
else:
print("Invalid Identifier")
# Driver Code
if __name__ == '__main__' :
# Enter the string
string = input("Enter you Identifier\n")
# calling run function
check(string)