Create code128 barcodes
Project description
Overview
code128 is a simple library to create Code-128 barcodes.
useful links:
Repository with latest source
License
Copyright (c) 2014-2015 Felix Knopf
This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.
This library 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 Lesser General Public License in the LICENSE.txt for more details.
What’s New
0.3
Graphical User Interface
0.2
Command Line Interface; PyPI integration
Features
optimal codes (use code128C to encode long sequences of digits; lazy switch between Code128A and B)
full latin-1 charset is supported
no additional libraries needed for svg output
output as PIL Image objects (PIL requiered)
command line tool and gui
Setup
This is a pure python package, for this the following steps are optional. A copy of the package (folder code128 in the source archive) in your directory will also work for this specific project. The instructions below ensure that the library is available for every python module and from the command line.
Note, that some Linux Systems use python3 and pip3 to distinguish from their Python2 versions.
For Windwos users without a Python installation there is also a ‘stand-alone’ version available.
Dependencies
Python3 (Tested with 3.3 and 3.4, other versions should work, too)
setuptools to use the setup script or pip, usually preinstalled
optional: PIL, or compatible fork (Pillow is recommended) to save barcodes as raster graphics
Let pip do the work
$ pip install -i https://testpypi.python.org/pypi code128 --pre
Windows Users
A convenient graphical installer is provided for the final releases.
build from source
download the zip archive or tarball, extract it and install with (you may need root access):
$ python ./code128-[version]/setup.py install
Usage
with Python
import code128
code128.image("Hello World").save("Hello World.png") # with PIL present
with open("Hello World.svg", "w") as f:
f.write(code128.svg("Hello World"))
from shell
Code128 provides a command line interface. If you installed the library, simply type
$ code128 "Hello World" "Hello World.svg"
The packet also defines a __main__.py entry point, so
$ python ~/spam/eggs/code128 "Hello World" "Hello World.svg"
will work, too.
The GUI
$ code128w
will start the graphical mode, where you can preview your codes. This needs PIL and tkinter.
Contribution
Use the Issue Tracker on Bitbucket to report bugs, request a feature, etc.
If you want to contribute some code, feel free to create a pull request.
Project details
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