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pycrc

★ 48 Open GitHub ↗

Free, easy to use Cyclic Redundancy Check (CRC) calculator and source code generator

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pycrc
=====

[pycrc](https://pycrc.org) is a free, easy to use Cyclic Redundancy Check (CRC)
calculator and C source code generator.

System Requirements
-------------------

Python 3.8 or newer is required to run pycrc.
The last version compatible with Python 2 is v0.9.x.

Running pycrc
-------------

This program doesn't need to be installed to be run. The script can be
executed from the source directory.
Simply call the python interpreter with the script as parameter:

python3 src/pycrc.py [options]

Installation
------------

Install pycrc (if required) using pip:

python3 -m pip install pycrc

or apt (on Debian 13 and later, Ubuntu 23.10 and later, and
derivatives):

sudo apt install pycrc

Either of these will install a `pycrc` binary in the path.

Getting help
------------

If you are new to pycrc and want to generate C code, start with
[the tutorial](https://pycrc.org/tutorial.html).

The [pycrc manual page](https://pycrc.org/pycrc.html) explains the command line
options in some detail and also gives some more examples how to use pycrc.

If you have found a bug in pycrc or want to request a feature please take the
time and submit it to the
[issue tracker](https://github.com/tpircher/pycrc/issues).
Thanks for your help.

Also see the [frequently asked questions](https://pycrc.org/faq.html).

Feedback
--------

If you like pycrc, let me know and drop me a note. If you don't like pycrc let
me know what you don't like and why.
If you want some idea how to say thanks for this software, please have a look
[here](https://www.tty1.net/say-thanks_en.html).

The MIT licence allows commercial use of the source and the output of the
program. But since I got asked on occasion whether the generated code is
encumbered by the copyright of the author, I give my view on this:

The code generated by pycrc is not considered a substantial portion of the
software, therefore the licence does not cover the generated code; the
author of pycrc will not claim any copyright on the generated code.

pycrc

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