regex

2026.2.28 verified Tue May 12 auth: no python install: verified quickstart: verified

An alternative regular expression module designed to replace Python's built-in 're' module, offering additional functionality. Current version: 2026.2.28. Release cadence: Regular updates.

pip install regex

Warnings

breaking The regex module is incompatible with PyPy due to differing string storage methods. ↓

fix Use CPython for compatibility.

gotcha The regex module releases the GIL during matching, which can lead to concurrency issues if the string is modified during matching. ↓

fix Ensure the string remains unchanged during matching when using concurrent=True.

Install compatibility verified last tested: 2026-05-12

python os / libc status wheel install import disk

3.10 alpine (musl) - - 0.04s 20.4M

3.10 slim (glibc) - - 0.03s 21M

3.11 alpine (musl) - - 0.27s 22.6M

3.11 slim (glibc) - - 0.20s 24M

3.12 alpine (musl) - - 0.12s 14.4M

3.12 slim (glibc) - - 0.13s 15M

3.13 alpine (musl) - - 0.03s 14.1M

3.13 slim (glibc) - - 0.03s 15M

3.9 alpine (musl) - - 0.03s 19.9M

3.9 slim (glibc) - - 0.03s 21M

Imports

regex
```
import regex
```
Ensure correct import path to avoid 'ModuleNotFoundError'

Quickstart verified last tested: 2026-04-23

Basic usage of the regex module to find all words in a text.

import regex

pattern = r'\b\w+\b'
text = 'Hello, world!'
matches = regex.findall(pattern, text)
print(matches)