You can check if a variable is a string using the type() function, passing the variable as an argument, and then comparing the result to the str class:

name = "Roger"
type(name) == str #True

Or using isinstance(), passing 2 arguments: the variable, and the str class:

name = "Roger"
isinstance(name, str) #True

Lessons in this unit:

0:	Introduction
1:	Python Strings
2:	Python Numbers
3:	Python Booleans
4:	▶︎ How to check if a variable is a string in Python
5:	How to check if a variable is a number in Python
6:	Python, how to check if a number is odd or even
7:	Python, Accepting Input
8:	Python Constants