crcc 2.0.8

C and Python CRC calculations module.

crcc

C and Python (ctypes/cffi-based) CRC calculations module.

Overview

TBD…

PyPI record.

Documentation.

Usage

TBD…

Installation

Prerequisites:

• Python 3.10 or higher

  • https://www.python.org/

• pip and setuptools

  • https://pypi.org/project/pip/

  • https://pypi.org/project/setuptools/

To install run:

python -m pip install --upgrade crcc

Development

Prerequisites:

• Development is strictly based on tox. To install it run:

  python -m pip install --upgrade tox

Visit Development page.

Installation from sources:

clone the sources:

git clone https://github.com/karpierz/crcc.git crcc

and run:

python -m pip install ./crcc

or on development mode:

python -m pip install --editable ./crcc

License

Copyright (c) 1994-2026 Adam Karpierz

Licensed under the zlib/libpng License

https://opensource.org/license/zlib

Please refer to the accompanying LICENSE file.

Authors

• Adam Karpierz <[e-mail]>

Changelog

2.0.8 (2025-11-30)

• Backward INCOMPATIBILITY:
• rename package crc-ct -> crcc, rename module crc -> crcc

  (due to conflict with existing https://pypi.org/project/crc/).

• Mark the package as typed.

• Copyright year update.

• Add tox’s tool.tox.env.cleanup testenv.

• Setup (dependencies) update and unification.

1.5.0 (2025-09-01)

• Making the package typed.

• Setup (dependencies) update.

1.4.4 (2025-07-07)

• 100% code coverage.

• Setup (dependencies) update.

1.4.3 (2025-06-15)

• The distribution is now created using ‘build’ instead of ‘setuptools’.

• Setup (dependencies) update (due to regressions in tox and setuptools).

1.4.1 (2025-05-04)

• Setup (dependencies) update.

1.4.0 (2025-04-28)

• Add support for Python 3.14

• Drop support for Python 3.9 (due to compatibility issues).

• Update readthedocs’s python to version 3.13

• Update tox’s base_python to version 3.13

• Setup (dependencies) update.

1.3.5 (2025-02-14)

• Setup (dependencies) update.

1.3.4 (2025-01-20)

• Copyright year update.

• Setup (dependencies) update.

1.3.3 (2024-12-13)

• Source distribution (*.tar.gz now) is compliant with PEP-0625.

• 100% code linting.

• Tox configuration is now in native (toml) format.

• Setup (dependencies) update.

1.3.2 (2024-10-30)

• Setup (dependencies) update.

1.3.1 (2024-10-09)

• Setup (dependencies) update.

1.3.0 (2024-09-30)

• Drop support for Python 3.8

• Setup (dependencies) update.

1.2.4 (2024-08-13)

• Add support for Python 3.13

• Setup (dependencies) update.

1.2.3 (2024-01-26)

• Cleanup.

1.2.1 (2024-01-22)

• Tox configuration has been moved to pyproject.toml

• Setup update (now based on tox >= 4.0).

• Add support for Python 3.12

• Drop support for Python 3.7

• Add support for PyPy 3.9 and 3.10

• Copyright year update.

1.2.0 (2022-08-02)

• Add support for Python 3.10 and 3.11

• Add support for PyPy 3.7, 3.8 and 3.9

• Setup update (currently based mainly on pyproject.toml).

1.1.0 (2022-01-10)

• Add support for Python 3.9.

• Drop support for Python 3.5 and 3.6.

• Copyright year update.

• Setup general update and improvement.

• General update and cleanup.

• Fixed docs setup.

1.0.0rc9 (2020-01-16)

• Fix for missing include stddef.h (for size_t) in crc.h

• Another fixes for gcc/Linux.

• Added ReadTheDocs config file.

• Setup update.

1.0.0rc6 (2019-11-13)

• Drop support for Python2.

• Add support for Python 3.8.

• Setup update and cleanup.

1.0.0rc2 (2019-05-19)

• C API has been changed in one place: crc_finalize() -> crc_final().

• Python API has been changed. It is now finally established in the folowing way; crc.name instead of crc.crc_name in most of cases.

• Python doc-strings update.

• Fix for error in Python definition of crc.predefined_models.

• Python tests have been added.

• Changes and fixes for support of Python2.

• Minor setup improvements.

1.0.0b1 (2019-05-12)

• Firt beta release.

0.0.1 (2017-05-09)

• Initial release for Python.