How to Split String by Underscore in Python?

Python – Split String by Underscore

You can split a string in Python using String.split() method.

In this tutorial, we will learn how to split a string by underscore _ in Python using String.split() and re.split() methods.

Refer Python Split String to know the syntax and basic usage of String.split() method.

Examples

1. Split given string by underscore

In this example, we will take a string with items/words separated by underscore character _, split the string and store the items in a list.

str = '52_841_63_24_76_49'

# Split string by _
items = str.split('_')

print(items)

Output

['52', '841', '63', '24', '76', '49']

2. Split given string by one or more underscores

In this example, we will take a string with items/words separated by one or more underscore characters, split the string and store the items in a list.

We shall use re python package in the following program. re.split(regular_expression, string) returns list of items split from string based on the regular_expression.

import re

str = '52_841__63____24_76______49'

# Split string by _
items = re.split('_+', str)

print(items)

Regular Expression _+ represents one or more underscores. So, one or more underscores is considered as a delimiter.

Output

['52', '841', '63', '24', '76', '49']

One ore more adjacent underscores are considered as a single delimiter.

Summary

In this tutorial of Python Examples, we learned how to split a string by underscore using String.split() and re.split() methods.