Leo P. Singer authored Dec 16, 2019 and Leo P. Singer committed Jan 10, 2020

This reverts commit e91133fe

The function `urllib.request.urlopen()` can accept either a URL
string or a `urllib.request.Request` instance. It seems that
`astropy.utils.data` sometimes uses the latter, so our monkeypatch
code needs to be able to handle that case.

This reverts commit ef9e1fe5

Fixes #190.

Fixes #191.

Fixes #188.

Fixes #185.

Fixes #184.

Fixes #175.

Fixes #183.