[Distutils] Cookie-related PyPI 503 errors

Marius Gedminas marius at pov.lt
Mon Dec 15 09:00:46 CET 2014

I keep getting 503 errors from PyPI that go away after I clear my

The entire cycle is as follows:

1. Visit PyPI, log in (because I need to do some maintenance or
   something of my packages).
2. Things continue to work for about a week.
3. Visit PyPI, get a 503 error from Varnish after a noticeable timeout:

    Error 503 backend read error

    backend read error

    Guru Mediation:

    Details: cache-iad2132-IAD 1418630124 4121731453

    Varnish cache server

4. Clear the PyPI cookie, reload page, things work again.
5. Go back to step 1.

Having to clear my cookies about once a week is getting annoying.

Can this be fixed please?

Marius Gedminas
Beware of bugs in the above code; I have only proved it correct, not tried it.
                -- Donald Knuth
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