We have a jenkins server that has recently had a number of erratically failing
builds (of python projects) when trying to pip install requirements. The
errors look like:
+ /var/lib/jenkins/jobs/ee/workspace/virtualenv/bin/pip install
--environment=/var/lib/jenkins/jobs/ee/workspace/virtualenv
--requirement=requirements.txt
[...]
Downloading/unpacking django-uni-form==0.9.0 (from -r
requirements.public.txt (line 15))
HTTP error 304 while getting
http://pypi.python.org/packages/source/d/django-uni-form/django-uni-form-0.9.0.tar.gz#md5=6d8c0bff28eab77829134392d5ff3021
(from http://pypi.python.org/simple/django-uni-form/)
Could not install requirement django-uni-form==0.9.0 (from -r
requirements.public.txt (line 15)) because of error HTTP Error 304: Not Modified
It's happening with a number of different packages, and seems to have started
just recently. I've never seen this before. Pypi shouldn't be returning a
304, unless pip is sending an If-Modified-Since header, and it seems unlikely
that pip would be sending that header if it doesn't know how to handle a 304
response. Is this a bug in the new load-balanced PyPI, or am I doing something
wrong on my end?
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