https://www.tutorialspoint.com/python/python_string_exercises.htm
Python - String Exercises
Python program to find number of vowels in a given string. It will produce the following output − Python program to convert a string with binary digits to...
string exercisespython
https://www.w3schools.com:443/python/python_strings_exercises.asp
Python - String Exercises
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML...
string exercisespython