enthought/comtypes — pull request #62 by kyleMR (2014-06-10 23:23:51+00:00)
Title: Updating npsupport.py to fail gracefully without numpy

Adding the check for numpy in isdatetime64 so that it doesn't fail when numpy is not present, which can cause comtypes.automation.tagVARIANT._set_value to except when called with certain datatypes:
TypeError: isinstance() arg 2 must be a class, type, or tuple of classes and types