pip_uninstall fails running stack.sh

[Brian Haley]

Just pulled the latest devstack onto my test VM, and it couldn't run stack.sh, just hangs here:

2017-05-16 16:14:07.424 | +inc/python:pip_uninstall:365 sudo -H /usr/local/bin/pip2.7 uninstall libvirt-python
2017-05-16 16:14:07.975 | Uninstalling libvirt-python-3.3.0:
2017-05-16 16:14:07.976 | /usr/local/lib/python2.7/dist-packages/libvirt.py
2017-05-16 16:14:07.976 | /usr/local/lib/python2.7/dist-packages/libvirt.pyc
2017-05-16 16:14:07.976 | /usr/local/lib/python2.7/dist-packages/libvirt_lxc.py
2017-05-16 16:14:07.976 | /usr/local/lib/python2.7/dist-packages/libvirt_lxc.pyc
2017-05-16 16:14:07.976 | /usr/local/lib/python2.7/dist-packages/libvirt_python-3.3.0.egg-info
2017-05-16 16:14:07.976 | /usr/local/lib/python2.7/dist-packages/libvirt_qemu.py
2017-05-16 16:14:07.976 | /usr/local/lib/python2.7/dist-packages/libvirt_qemu.pyc
2017-05-16 16:14:07.977 | /usr/local/lib/python2.7/dist-packages/libvirtmod.so
2017-05-16 16:14:07.977 | /usr/local/lib/python2.7/dist-packages/libvirtmod_lxc.so
2017-05-16 16:14:07.977 | /usr/local/lib/python2.7/dist-packages/libvirtmod_qemu.so

Running the same 'pip uninstall' by hand shows it's prompting the user for input:

$ sudo pip uninstall libvirt-python
Uninstalling libvirt-python-3.3.0:
  /usr/local/lib/python2.7/dist-packages/libvirt.py
  /usr/local/lib/python2.7/dist-packages/libvirt.pyc
  /usr/local/lib/python2.7/dist-packages/libvirt_lxc.py
  /usr/local/lib/python2.7/dist-packages/libvirt_lxc.pyc
  /usr/local/lib/python2.7/dist-packages/libvirt_python-3.3.0.egg-info
  /usr/local/lib/python2.7/dist-packages/libvirt_qemu.py
  /usr/local/lib/python2.7/dist-packages/libvirt_qemu.pyc
  /usr/local/lib/python2.7/dist-packages/libvirtmod.so
  /usr/local/lib/python2.7/dist-packages/libvirtmod_lxc.so
  /usr/local/lib/python2.7/dist-packages/libvirtmod_qemu.so
Proceed (y/n)?

pip_uninstall needs to use -y

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/465114

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/465114
Committed: https://git.openstack.org/cgit/openstack-dev/devstack/commit/?id=954fd1b729f792dc6cbc470285a5e147053147a8
Submitter: Jenkins
Branch: master

commit 954fd1b729f792dc6cbc470285a5e147053147a8
Author: Brian Haley <email address hidden>
Date: Tue May 16 12:24:45 2017 -0400

    Use -y with 'pip uninstall'

    'pip uninstall' will hang running stack.sh if it has to
    prompt the user for input, use -y.

    Change-Id: Ic94639e444b87fd3538463d5a51c01a0208a2ab2
    Closes-bug: #1691172