When it is required to check if a string contains a specific character or not, a method named ‘check_string’ is defined that uses regular expression and the ‘compile’ method to check if the string has a special character or not. Outside the method, a string is defined, and the method is called by passing this string as a parameter.
Example
Below is a demonstration of the same
import re def check_string(my_string): regex = re.compile('[@_!#$%^&*()<>?/\|}{~:]') if(regex.search(my_string) == None): print("String contains special characters.") else: print("String does not contain any special character.") my_string = "PythonInterpreter" print("The string is :") print(my_string) check_string(my_string)
Output
The string is : pythonInterpreter String contains special characters.
Explanation
The required packages are imported.
A method named ‘check_string’ is defined that takes a string as a parameter.
It uses the ‘compile’ method to see if a special character is present in the string or not.
Outside the method, a string is defined, and is displayed on the console.
It is passed as a parameter to the function.
The output is displayed on the console.