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https://docs.djangoproject.com/en/1.8/howto/custom-management-commands/ Django intercepts the 'pull' argument and says "unrecognized arguments pull" There were no tests for this command, so it wasn't noticed during the upgrade testing, only once our integration monitoring noticed.
common ------ This directory contains common code shared between LMS and CMS, such as Mako templates, CSS, and Coffescript.