Installation: Import error: no module named pbr.version

[Eric K]

Following Congress stand-alone install instruction errors on the database schema push down:
---------
$ sudo congress-db-manage --config-file /etc/congress/congress.conf upgrade head
sudo: unable to resolve host host
Traceback (most recent call last):
  File "/usr/local/bin/congress-db-manage", line 6, in <module>
    from congress.db.migration.cli import main
  File "/usr/local/lib/python2.7/dist-packages/congress/__init__.py", line 16, in <module>
    import pbr.version
ImportError: No module named pbr.version
---------
Env Notes: Python 2.7.6 ; Setuptools 18.3.2

[Eric K (ekcs)]

The issue may be related to changes in new versions of setuptools as discussed here: https://bugs.launchpad.net/fuel/+bug/1443328

I suggest amending the install instructions to ask people to do

$ sudo pip install -r requirements.txt

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/liberty
Review: https://review.openstack.org/231313

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/231315

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/231313
Committed: https://git.openstack.org/cgit/openstack/congress/commit/?id=8e8ffd0f1b5ea92a5b7e29d562e584ef639863fe
Submitter: Jenkins
Branch: stable/liberty

commit 8e8ffd0f1b5ea92a5b7e29d562e584ef639863fe
Author: Eric K <email address hidden>
Date: Mon Oct 5 22:12:36 2015 -0700

    Amended install instructions in README.rst

    Purpose: helps users avoid several installation errors
    Changes:
    - added instruction to install requirements using pip
    - added instruction to install required packages build-essential,
    libssl-dev, libffi-dev

    DocImpact
    Closes-Bug: #1503094
    Closes-Bug: #1503095

    Change-Id: I484eda2e16edb2039add38c92720eb15d9274fd1

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/231315
Committed: https://git.openstack.org/cgit/openstack/congress/commit/?id=46ca40dc220549eb7ee742fe5a410694b082ce12
Submitter: Jenkins
Branch: master

commit 46ca40dc220549eb7ee742fe5a410694b082ce12
Author: Eric K <email address hidden>
Date: Mon Oct 5 22:41:05 2015 -0700

    Amended install instructions in README.rst

    Purpose: helps users avoid several installation errors
    Changes:
    - added instruction to install requirements using pip
    - added instruction to install required packages build-essential,
    libssl-dev, libffi-dev

    DocImpact
    Closes-Bug: #1503094
    Closes-Bug: #1503095

    Change-Id: Iebdb25f259095be6e7e237c8a683f657ffeab92a

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/congress 2.0.0 release.