python - "KeyError: 'PYTHONPATH'" message when updating Anaconda packahes on Mac OS X -

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each time try update anaconda (version 3.15.1) packages on mac (os x 10.10.4), following message:

error in sitecustomize; set pythonverbose traceback: keyerror: 'pythonpath'

the rest of updating process seems run normally, i'd figure out causes message , how remove it.

set pythonverbose environment variable suggested error message:

pythonverbose=1 conda update --all

that should give full traceback, should tell file error coming from.


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