astropy/astropy — pull request #477 by astrofrog (2012-11-14 11:20:45+00:00)
Title: Issue a warning if uncertainty classes do not support the propagation of correlated uncertainties

This is a clean solution to #358 which will issue a warning anytime uncertainties are propagated but the uncertainty classes do not support them. The warning can be disabled with a configuration item.

If people agree with this, I can add a note to the docs about the warning and how to disable it.

cc @eteq @wkerzendorf