GCodeUtils is a set of utilities to manipulate GCode programs. It is targetting RepRap oriented GCode but isn't limited to RepRap.
Currently, it is composed of one calibration generation program, a basic gcode modifier (which translates code along X/Y or convert extrusion distance to relative) and a stretcher to increase hole size of printed parts.
GCodeUtils is installable from PyPI with a single pip command:
pip install gcodeutils
Alternatively, GCodeUtils can be run directly from sources after a git pull:
git clone https://github.com/zeograd/gcodeutils.git cd gcodeutils && python setup.py install
Once GCodeUtils is installed, the .py files located in the cura_plugins subdirectory can be copied into the plugins directory of Cura to be callable from within Cura itself.
Latest documentation can be found online at this address: http://gcodeutils.readthedocs.org/en/latest/
GCode parsing is borrowed from GCoder as found in Printrun (https://github.com/kliment/Printrun)