"Some externally hosted files were ignored" issue while running pip

[Mike Scherbakov]

Following Development Documentation: 4.2. Setup for Nailgun Unit Tests at http://docs.mirantis.com/fuel-dev/develop/env.html#setup-for-nailgun-unit-tests, there is
5. pip install -r test-requirements.txt
which fails for me with the following error message:

...
Downloading/unpacking argparse==1.2.1 (from -r nailgun/requirements.txt (line 4))
  Could not find a version that satisfies the requirement argparse==1.2.1 (from -r nailgun/requirements.txt (line 4)) (from versions: 0.1.0, 0.2.0, 0.3.0, 0.4.0, 0.5.0, 0.6.0, 0.7.0, 0.8.0, 0.9.0, 0.9.1, 1.0.1, 1.0, 1.1)
  Some externally hosted files were ignored (use --allow-external to allow).

To resolve an issue, command line option "--allow-all-external" can be provided to pip:
pip install --allow-all-external -r nailgun/test-requirements.txt

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/83996

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/83996
Committed: https://git.openstack.org/cgit/stackforge/fuel-web/commit/?id=e82530cfb7390d616226b5e9d8397d8168cd4d0c
Submitter: Jenkins
Branch: master

commit e82530cfb7390d616226b5e9d8397d8168cd4d0c
Author: Mike Scherbakov <email address hidden>
Date: Sun Mar 30 08:41:35 2014 +0400

    --allow-all-external is required for pip

    At least one of the packages, argparse, is currently can't
    be installed by simple 'pip install argparse==1.2.1'. To be
    able to install it from external sources, --allow-all-external
    option to pip can be used

    Change-Id: Ib7199dca14b9bf471fb986b3ef4b805d22372a09
    Closes-Bug: #1299678