python isdecimal

Python’s isdecimal() String Method: A Quick Guide

The isdecimal() method in Python’s string class helps in determining whether a string contains only decimal characters. It is a handy method when working with numeric validations.

Syntax

The isdecimal() method follows a straightforward format:

str.isdecimal()

Parameters

This method does not take any parameters.

How does isdecimal() work?

The method returns True if all characters in the string are decimals (0-9) and the string is not empty, otherwise, it returns False.

Examples

To better understand the method, consider the following examples:

sample_str = u"1.234"
print(sample_str.isdecimal())

sample_str = u"12345"
print(sample_str.isdecimal())

The output for the above examples will be:

False
True

This is because the first string contains a period (.), which is not a decimal character. In contrast, the second string consists only of decimal characters.

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