[Impala-ASF-CR] IMPALA-686: Make pip download.py honor redirects.

["Philip Zeyliger (Code Review)" <ge...@cloudera.org>]

Hello Lars Volker, Fredy Wijaya, 

I'd like you to reexamine a change. Please visit

    http://gerrit.cloudera.org:8080/10083

to look at the new patch set (#2).

Change subject: IMPALA-686: Make pip_download.py honor redirects.
......................................................................

IMPALA-686: Make pip_download.py honor redirects.

As part of our continuing woes with PyPi infrastructure, we've now seen
redirects. Following redirects seems like the right thing to do, so I've
changed the downloader code to follow them.

I checked that this is available in Python 2.6.

The build failure signature looks like:

   Downloading AllPairs-2.0.1.tar.gz from https://pypi.python.org/packages/04/44/cb85d029b33ddfa7b5a27ae523434c2230f11a89d1f0c73203e9007a6eb0/AllPairs-2.0.1.tar.gz
   ('http error', 302, 'Found', <httplib.HTTPMessage instance at 0x7fbf7819b050>)
   Download failed after several attempts.
   Warning: Unable to download Python requirements.
   Warning: bootstrap_virtualenv or other Python-based tooling may fail.

Change-Id: Ic7551cec43a2d378df7e3cc7d521ace338b56ba2
---
M infra/python/deps/pip_download.py
1 file changed, 2 insertions(+), 2 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/83/10083/2
-- 
To view, visit http://gerrit.cloudera.org:8080/10083
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ic7551cec43a2d378df7e3cc7d521ace338b56ba2
Gerrit-Change-Number: 10083
Gerrit-PatchSet: 2
Gerrit-Owner: Philip Zeyliger <ph...@cloudera.com>
Gerrit-Reviewer: Fredy Wijaya <fw...@cloudera.com>
Gerrit-Reviewer: Lars Volker <lv...@cloudera.com>
Gerrit-Reviewer: Philip Zeyliger <ph...@cloudera.com>