Conda UnsatisfiableError (fastai <-> kdb/pyq)

I’m using a conda and have a virtualenv with nothing but fastai-1.0.39-1 (and dependencies) so far. Now I’d like to add another package (it happens to be pyq with kdb+). Conda reports an UnsatisfiableError.

  1. Could somebody just try conda install -c kx -c enlnt pyq and and reply here if the same error happens, please? No worries, you won’t screw up anything, just enter “no” when conda prompts for a confirmation.
  2. Is there a way to drill down to the cause? conda info pyq and conda info fastai return noting (unlike e.g. numpy). conda search -c fastai fastai=1.0.39 --info and conda search -c enlnt pyq --info seem to return the 1st level dependencies only, python >=3.6,<3.7.0a0 for pyq. My virtualenv has python-3.7.0-h6e4f718_3.