ESO's retrieve_data() cannot be used twice in same session

[jwoillez]

>>> from astroquery.eso import Eso
>>> eso = Eso()
>>> eso.retrieve_data('XXX')
>>> eso.retrieve_data('YYY')

The first call succeeds, but the second fails. The reason for this is a too clever requests module replacing urls of known permanently move responses (301). A PR with a workaround is on its way.

[keflavich]

@jwoillez I encountered the same problem with the ALMA service, which you might expect since they're implemented the same way. I had to disable caching for the steps with the redirects. I'm curious to see how you solve it.

[jwoillez]

Fixed by above #435.