special_ch.py

# Python program to check if a string contains any special character 
import re 
def run(string): 
  regex = re.compile('[@_!#$%^&*()<>?/\|}{~:]') 
  if(regex.search(string) == None): 
    print("String is accepted") 
  else: 
    print("String is not accepted.") 
if __name__ == '__main__' : 
  string = str(input("Enter string "))
  run(string)