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Cato is a command line tool which facilitates source code licensing

Project description


This module implements the necessary routines used to embed license informations into source code project files. The package installation also installs a command line utility along with the license files in textual format in a hidden directory inside the user home.


Cato license terms can be found in the LICENSE file distributed with the package.


after downloading the package:

$ cd cato
$ python install

or via pypi automatic installation:

$ pip install cato


Developer documentation is distributed in html format along with the package, and can be obtained running epydoc on the source code files:

Usage: cato -l gpl-3.0 -o "John Doe" -e -y 2012

Cato is free software for applying licenses to your source code files. You can customize cato changing the cato.cfg file that you find in ~/.cato/ and adding license textual files in ~/cato/licenses/. License files can contain <owner> and <email> textual tags which will be replaced with cato informations. Embedded license versions will be applied on the first empty line of each source file scanned, if no empty line is found, no license is applied. In its normal behaviour cato apply the license to the files given as arguments on the command line, while using -d option it scans the given directory for file extensions specified as command line arguments. If -r is provided in conjunction with -d, all the directory tree is scanned starting from the supplied dir.

-h, --help

show this help message and exit


Lists available licenses and quit

-l LICENSE, --license=LICENSE

The license name, use –list to list all licenses available

-o OWNER, --owner=OWNER

the copyright owner

-e EMAIL, --email=EMAIL

email contact of the copyright owner

-y YEAR, --year=YEAR

the copyright year, defaults to current year


a target directory where to find sources and add a LICENSE file


only with -d. If set recursively parses directory tree

-c COMMENT, --comment=COMMENT

overrides comment syntax

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