"defconAppKit-0.1-py2.7.egg-info could not be properly decoded in UTF-8"

I get this warning when I start glyphs app up. Version 2.6.7 (1356)
I was messing auond in my python installs to clean things up yesterday and now I hav this error, they might be related?

/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/init.py:1899: UserWarning: /Library/Python/2.7/site-packages/robofab-1.2-py2.7.egg-info could not be properly decoded in UTF-8
warnings.warn(msg)
/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/init.py:1899: UserWarning: /Library/Python/2.7/site-packages/defconAppKit-0.1-py2.7.egg-info could not be properly decoded in UTF-8