The QGIS.apps are bundled with most of the Qt frameworks they were compiled against. See Mac section #5 of INSTALL.Ĭoncerning the GUI toolkit used when building PyQGIS plugins, it is PyQt (not Tcl/Tk), which is a Python binding for Nokia's Qt C++ GUI toolkit, which is what QGIS is built with. Python 3 is not recommended at this time. Then you need to be specific when choosing the version of Python for which to build the app. Things change if you want to compile QGIS yourself (to use latest master branch from repository). ~/.qgis/python/plugins/) precede site-packages on sys.path. Will be available in QGIS, but plugin-local packages or modules of the same name will be loaded before them, as the plugin location paths (e.g.

Modules installed for the Python-specific version (here for stock Lion). A Python 3 (or 2.5) interpreter will not be used for the QGIS's internal Python environment, only the one it was compiled against. If you are using the QGIS installs, they are compiled against the most current version of Python on the stock Mac OS X version they are built for (2.7 for Lion). There is 2.5, 2.6, and 2.7 installed with Lion.Ĭoncerning whether a Python 3 install will affect QGIS.

In fact, your Mac has several versions of Python already installed. usr/bin/python2.5), and some folks have made it easier on themselves. You can also switch between them, or call a specific-version interpreter in Terminal (e.g. Pyrogerg, you can have several versions of Python on your Mac (Mac OS X's, Macports, framework, etc.) and it will not mess with QGIS, or any of the other versions of Python (older, but still relevant, similar question).

How to compile python on mac