How to check if a string contains special characters or not in Python?

Program to check if the string contains any special character

# Python program to check if a string 
# contains any special character 

import re

# Getting string input from the user 
myStr =  input('Enter the string : ')

# Checking if a string contains any special character  
regularExp = re.compile('[@_!#$%^&*()<>?/\|}{~:]')

# Printing values 
print("Entered String is ", myStr)
if(regularExp.search(myStr) == None):
    print("The string does not contain special character(s)")
else:
    print("The string contains special character(s)")

Output:

RUN 1:
Enter the string : Hello, world!
Entered String is  Hello, world!
The string contains special character(s)

RUN 2:
Enter the string : ABC123@#%^
Entered String is  ABC123@#%^
The string contains special character(s)

RUN 3:
Enter the string : Hello world
Entered String is  Hello world
The string does not contain special character(s)