[GIS] How to install matplotlib and pyparsing correctly on OSX-Lion

macmatplotlibqgis-plugins

I am trying to install the Contour plugin in QGIS 2.0.1 (I'm running OSX-Lion) and I have installed NumPy and Matplotlib from kyngchaos however when I go to install the plugin I get the following error:

The Plugin is broken. Python said:
matplotlib requires pyparsing

Did I misinstall matplotlib or do I simply need to find a copy of pyparsing, and if so, where is a good place to get it?

UPDATE:
I downloaded pyparsing from pyparsing.wikispaces.com and have been following the guidelines for installation. The README tell me to "Do the usual: python setup.py install" but the online instructions say to use "easy_install pyparsing". I am not sure what I am really supposed to do with this information. I have tried running the "Setup.py" file but it lacks a command but I am not sure where to add the command.

Thanks
DF

Best Answer

QGIS use the Apple Python installed by default on your system and pyparsing is a Python module.

And even if it is not a GIS question, to install a Python module (if you have not pip or easy_install):

  1. download the module and unzip it
  2. open the Terminal.app and cd to the folder of the unzipped module

  3. type:

    python setup.py install

and pyparsing is installed in /Library/Python/2.7/site-packages

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