Strings and Numbers: How to check if a variable is a number in Python

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

age = 1
type(age) == int #True

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

age = 1
isinstance(age, int) #True

You can check if the number is a floating point number by comparing it to float instead of int:

fraction = 0.1
type(fraction) == float #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