Description:

Create functions that efficiently compute the Cyclic Redundancy Check
(CRC) using table lookup.

Features:

* Create Python functions for computing the CRC. If the optional
extension module is installed, the calculations are preformed
using fast C code.
* Create instances of the Crc class that support the interface
used by the md5 and sha modules in the Python standard library.
* Generate C/C++ code that can be incorporated in another project.
* Any generator polynomial producing 8, 16, 32, or 64 bit CRCs is
allowed.
* Forward and bit-reverse algorithms are supported.