History

2.4.0 (2021-08-13)

Add type hints.

2.3.0 (2021-07-25)

Normalize package names from underscores to hyphens, just like pip does.
Stop distributing tests to reduce package size. Tests are not intended to be run outside of the tox setup in the repository. Repackagers can use GitHub's tarballs per tag.

2.2.1 (2021-01-22)

Fix to ignore lines that represent arguments to pip, such as --find-links.

2.2.0 (2020-12-13)

Drop Python 3.5 support.
Support Python 3.9.
Move license from ISC to MIT License.

2.1.1 (2020-08-11)

Fix to ignore packages installed directly from wheels, for example pip itself on Heroku, which will output its location in pip freeze as pip @ file:///tmp/pip-20.1.1-py2.py3-none-any.whl.

2.1.0 (2019-12-19)

Update Python support to 3.5-3.8, as 3.4 has reached its end of life.
Converted setuptools metadata to configuration file. This meant removing the __version__ attribute from the package. If you want to inspect the installed version, use importlib.metadata.version("pip-lock") (docs / backport).
Fix parsing of package names featuring extras e.g. package[extra1].
Require Pip 10+.

2.0.0 (2019-02-28)

Drop Python 2 support, only Python 3.4+ is supported now.

1.2.0 (2018-07-25)

Ignore installed external (-e) packages.

1.1.1 (2018-04-15)

Fix for pip 10 move of import to pip._internal

1.1.0 (2016-08-18)

Remove logic that made relative file paths relative to the path of the calling code's file. It's now the standard behaviour of relative to the current working directory. Passing an absolute path is recommended.
Make comparison of package names case-insensitive to work with requirements.txt files that use a different case to the canoncial package name. This can happen with pip-compile that always outputs lowercase names.
Fix 'mismatches' typo
Only indent mismatch list by 4 spaces in error message

1.0.2 (2016-10-28)

Fix relative paths for all environments

1.0.1 (2016-10-28)

Support relative requirements.txt paths

1.0.0 (2016-10-27)

First release on PyPI.