The following is the output I got on server1.
The following is the output I got on server2.
This results in that I cannot download older versions of some packages (e.g. tensorflow-gpu) on server1. Why are they different? What's wrong?
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A few things going on here. First, it looks like the Tuna mirror is not mirroring pre-releases (ending in
rc1
,rc2
,a0
, etc.)If we just consider PyPI, on "server1" you're getting the following releases:
1.13.0rc1
1.13.0rc2
1.13.0
2.0.0a0
These are all the releases that support Python 3.7, so my guess is that you are using Python 3.7 on "server1", and some other, older version of Python on "server2", and
pip
is filtering compatible releases for you.