appcelerator/titanium_mobile — pull request #3081 by billdawson (2012-09-28 23:32:15+00:00)
Title: TIMOB-11119 Android Tooling: Fail early in module build if python cannot be located.

Failing at the right time also has the benefit of stderr containing the relevant error message, rather than failing later because something a python script was supposed to do didn't get done.

See [testing notes](http://jira.appcelerator.org/browse/TIMOB-11119?focusedCommentId=221467&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-221467).