Python implementation of the patiencediff algorithm
Project Links
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Maintainer: Breezy Developers
Requires Python: >=3.9
Classifiers
Development Status
- 6 - Mature
Programming Language
- Python :: 3.9
- Python :: 3.10
- Python :: 3.11
- Python :: 3.12
- Python :: 3.13
- Python :: 3.14
- Python :: Implementation :: CPython
- Python :: Implementation :: PyPy
Operating System
- POSIX
This package contains the implementation of the patiencediff algorithm, as first described by Bram Cohen.
Like Python’s difflib, this module provides both a convenience unified_diff function for the generation of unified diffs of text files as well as a SequenceMatcher that can be used on arbitrary lists.
Patiencediff provides a good balance of performance, nice output for humans, and implementation simplicity.
The code in this package was extracted from the Bazaar code base.
The package comes with two implementations:
A Python implementation (_patiencediff_py.py); this implementation only requires a Python interpreter and is the more readable version of the two
A C implementation implementation (_patiencediff_c.c); this implementation is faster, but requires a C compiler and is less readable
Usage
To invoke patiencediff from the command-line:
python -m patiencediff file_a file_b
Or from Python:
>>> import patiencediff
>>> print(''.join(patiencediff.unified_diff(
... ['a\n', 'b\n', 'b\n', 'c\n'],
... ['a\n', 'c\n', 'b\n'])))
---
+++
@@ -1,4 +1,3 @@
a
+c
b
-b
-c
0.2.19
Jun 15, 2026
0.2.18
Oct 15, 2025
0.2.17
Oct 15, 2025
0.2.15
May 06, 2024
0.2.14
Sep 17, 2023
0.2.13
Feb 07, 2023
0.2.12
Dec 15, 2022
0.2.11
Dec 09, 2022
0.2.10
Dec 04, 2022
0.2.9
Nov 29, 2022
0.2.8
Nov 20, 2022
0.2.7
Oct 26, 2022
0.2.6
Oct 18, 2022
0.2.5
Oct 18, 2022
0.2.4
Oct 18, 2022
0.2.3
Sep 07, 2022
0.2.2
Mar 26, 2021
0.2.1
Oct 14, 2020
0.2.0
Jun 01, 2020
0.1.0
Jun 03, 2019
0.0.4
Mar 02, 2019
0.0.3
Aug 02, 2018
0.0.2
Aug 02, 2018
0.0.1
Jul 11, 2018
Wheel compatibility matrix
Files in release
patiencediff-0.2.19-cp310-cp310-macosx_11_0_arm64.whl (259.7KiB)
patiencediff-0.2.19-cp310-cp310-manylinux_2_28_aarch64.whl (288.8KiB)
patiencediff-0.2.19-cp310-cp310-manylinux_2_28_x86_64.whl (294.3KiB)
patiencediff-0.2.19-cp310-cp310-win32.whl (149.6KiB)
patiencediff-0.2.19-cp310-cp310-win_amd64.whl (156.4KiB)
patiencediff-0.2.19-cp311-cp311-macosx_11_0_arm64.whl (259.4KiB)
patiencediff-0.2.19-cp311-cp311-manylinux_2_28_aarch64.whl (287.9KiB)
patiencediff-0.2.19-cp311-cp311-manylinux_2_28_x86_64.whl (293.5KiB)
patiencediff-0.2.19-cp311-cp311-win32.whl (149.3KiB)
patiencediff-0.2.19-cp311-cp311-win_amd64.whl (156.2KiB)
patiencediff-0.2.19-cp312-cp312-macosx_11_0_arm64.whl (253.2KiB)
patiencediff-0.2.19-cp312-cp312-manylinux_2_28_aarch64.whl (284.3KiB)
patiencediff-0.2.19-cp312-cp312-manylinux_2_28_x86_64.whl (290.0KiB)
patiencediff-0.2.19-cp312-cp312-win32.whl (147.1KiB)
patiencediff-0.2.19-cp312-cp312-win_amd64.whl (154.1KiB)
patiencediff-0.2.19-cp313-cp313-macosx_11_0_arm64.whl (253.0KiB)
patiencediff-0.2.19-cp313-cp313-manylinux_2_28_aarch64.whl (284.4KiB)
patiencediff-0.2.19-cp313-cp313-manylinux_2_28_x86_64.whl (289.7KiB)
patiencediff-0.2.19-cp313-cp313-win32.whl (147.2KiB)
patiencediff-0.2.19-cp313-cp313-win_amd64.whl (153.8KiB)
patiencediff-0.2.19-cp314-cp314-macosx_10_15_universal2.whl (492.8KiB)
patiencediff-0.2.19-cp314-cp314-macosx_10_15_x86_64.whl (259.9KiB)
patiencediff-0.2.19-cp314-cp314-macosx_11_0_arm64.whl (255.1KiB)
patiencediff-0.2.19-cp314-cp314-manylinux_2_28_aarch64.whl (284.9KiB)
patiencediff-0.2.19-cp314-cp314-manylinux_2_28_x86_64.whl (290.4KiB)
patiencediff-0.2.19-cp314-cp314-win32.whl (150.2KiB)
patiencediff-0.2.19-cp314-cp314-win_amd64.whl (157.9KiB)
patiencediff-0.2.19-cp314-cp314t-macosx_10_15_universal2.whl (491.6KiB)
patiencediff-0.2.19-cp314-cp314t-macosx_10_15_x86_64.whl (259.5KiB)
patiencediff-0.2.19-cp314-cp314t-macosx_11_0_arm64.whl (254.3KiB)
patiencediff-0.2.19-cp314-cp314t-manylinux_2_28_aarch64.whl (283.8KiB)
patiencediff-0.2.19-cp314-cp314t-manylinux_2_28_x86_64.whl (289.5KiB)
patiencediff-0.2.19-cp314-cp314t-win32.whl (149.3KiB)
patiencediff-0.2.19-cp314-cp314t-win_amd64.whl (156.7KiB)
patiencediff-0.2.19-cp39-cp39-macosx_11_0_arm64.whl (262.0KiB)
patiencediff-0.2.19-cp39-cp39-manylinux_2_28_aarch64.whl (291.5KiB)
patiencediff-0.2.19-cp39-cp39-manylinux_2_28_x86_64.whl (297.5KiB)
patiencediff-0.2.19-cp39-cp39-win32.whl (151.9KiB)
patiencediff-0.2.19-cp39-cp39-win_amd64.whl (159.0KiB)
patiencediff-0.2.19.tar.gz (24.0KiB)
