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Python - check if string only contains numbers

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Created by:
Mark-Rotteveel
537

In this article, we would like to show you how to check if string only contains numbers in Python.

Quick solution:

text = "123"
print(text.isdigit())  # True
text = "123a"
print(text.isdigit())  # False

 

Practical example

In this example, we use string.isdigit() method to check if the strings contain only numbers.

numbers = "123"
print(numbers.isdigit())  # True

text = "abc"
print(text.isdigit())  # False

float_number = "1.23"
print(float_number.isdigit())  # False

Output:

True
False
False

Note:

You can also use isdecimal() instead of isdigit().

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Python - check if string only contains numbers
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