I have a conda environment set up to use the development branch of yt. When I just now went to update it I got:
conda update -c http://use.yt/with_conda/ -c conda-forge yt
Fetching package metadata .............
CondaHTTPError: HTTP None None for url <None>
An HTTP error occurred when trying to retrieve this URL. SSLError(SSLError(SSLError(1, u'[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590)'),),)
I don't get the "None None" bit, but it looks like a problem with the SSL certificate. Or maybe it's something else. Any help would be appreciated.