This fork doesn't output a PIL image, but allows accessing pixels as nested tuples, or more conveniently, draw the QR code to a cairo surface as a vector graphic. (Although it would be more space efficient as a pixel surface with nearest neighbor interpolation)

The vector generation uses a crack chain-code to generate a simpler path.

Python bindings for libqrencode using Cython

Credit and inspiration to:

• pyqrcode (this is essentially a cleaned up version of the Encoder, eliminating all the Java dependencies)

• libqrencode, by Fukuchi Kentaro

• PyQrCodec, by Stefano Pedemonte

Pre-requisites on all platforms:

• you need libqrencode somewhere in your LD path (/usr/local/lib)
• you need qrencode.h somewhere on your include path (/usr/local/include)

Installation

$ python setup.py install

Usage

See test.py:

import qrencode

# to render a QR code including white quiet margin:
qrencode.render(cairo_context, size_in_cairo_units, some_string)

# to get the path with useful outlines:
qrencode.path(cairo_context, size_in_cairo_units, some_string)
cairo_context.stroke_preserve()
cairo_context.fill()