Quote:
Originally Posted by bah450
sry i donīt understand what must be set by the preferences? (Python2.7...Python3.4)
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One or the other (or both if you have both versions of Python installed) must be configured with the path to the specified python interpreter on your system. If you have Python v2.7.x installed, it's usually enough to click the 'Auto' button.
If you have a more complex setup, you may need to to manually set the path by clicking the 'Set' button and browsing to wherever Python is installed on your system.
Of course, all things begin with actually HAVING Python 2.7 and/or Python 3.4 installed in the first place.