test if string is number python code example

Example 1: python test if string is int

'16'.isdigit()
>>>True

'3.14'.isdigit()
>>>False

'Some text'.isdigit()
>>>False

Example 2: python check if number

if type(variable) == int or type(variable) == float:
    isNumber = True

Example 3: how to check if digit in int python

s = set(str(4059304593))
print('2' in s)