numenta/nupic — pull request #442 by oxtopus (2013-11-25 16:53:54+00:00)
Title: Gracefully handle missing pytest-xdist distribution.

This addresses a common scenario encountered on the mailing list where a user will uncomment out a line referencing the "--boxed" option because pytest-xdist is not installed. This adds a simple check to see if pytest-xdist is available, and if not, prints a warning, disables the "-n" CLI argument, and doesn't add the "--boxed" parameter.