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lzw-python

A minimalistic LZW implementation in Python 3, compatible with Unix compress program (typically .Z extension).

Usage

$ python3 lzw.py --help
usage: lzw.py [-h] [-d] [-o OUTPUT] INPUT

LZW Compress/Decompress

positional arguments:
  INPUT                 Input file

optional arguments:
  -h, --help            show this help message and exit
  -d, --decompress      Decompress mode
  -o OUTPUT, --output OUTPUT
                        Output file

Test

$ python3 lzw.py -o test/output.txt.Z test/Lorem_Ipsum.txt
$ sudo apt install ncompress
$ compress -d test/output.txt.Z

License

Copyright (c) 2014-2019 P. Asimakopoulos

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.