Skip to main content

C and Python CRC calculations module.

Project description


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


PyPI record.







To install run:

python -m pip install --upgrade crc-ct



  • 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 crc-ct

and run:

python -m pip install ./crc-ct

or on development mode:

python -m pip install --editable ./crc-ct


Copyright (c) 1994-2022 Adam Karpierz
Licensed under the zlib/libpng License
Please refer to the accompanying LICENSE file.



1.1.0 (2022-01-10)

  • Drop support for Python 3.6.
  • Copyright year update.
  • Setup update.

1.1.0rc4 (2021-07-20)

  • Setup general update and improvement.

1.1.0rc3 (2020-10-18)

  • Add support for Python 3.9.
  • Drop support for Python 3.5.
  • 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; 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 improved, enhanced and fixed.
  • Changes and fixes for support of Python2.
  • Minor setup improvement.

1.0.0b2 (2019-05-13)

  • Python tests have been added.
  • Minor setup improvements.

1.0.0b1 (2019-05-12)

  • Firt beta release.

0.0.1 (2017-05-09)

  • Initial release for Python.

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for crc-ct, version 1.1.0
Filename, size File type Python version Upload date Hashes
Filename, size crc_ct-1.1.0-cp37-cp37m-win_amd64.whl (17.6 kB) File type Wheel Python version cp37 Upload date Hashes View
Filename, size (34.9 kB) File type Source Python version None Upload date Hashes View

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor NVIDIA NVIDIA PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page