Comment 8 for bug 1822842

I have tested and verified that this works as expected with the package from bionic-proposed. Note that the python-pip package change results in the change in python-pip-whl which is used for virtualenvs.

root@aio1-utility-container-f98ba613:/# apt-cache policy python-pip-whl
python-pip-whl:
  Installed: 9.0.1-2.3~ubuntu1.18.04.1
  Candidate: 9.0.1-2.3~ubuntu1.18.04.1
  Version table:
 *** 9.0.1-2.3~ubuntu1.18.04.1 500
        500 http://archive.ubuntu.com/ubuntu bionic-proposed/universe amd64 Packages
        100 /var/lib/dpkg/status
     9.0.1-2.3~ubuntu1 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 Packages
     9.0.1-2 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages

root@aio1-utility-container-f98ba613:/# apt-cache policy python-virtualenv
python-virtualenv:
  Installed: 15.1.0+ds-1.1
  Candidate: 15.1.0+ds-1.1
  Version table:
 *** 15.1.0+ds-1.1 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
        100 /var/lib/dpkg/status

root@aio1-utility-container-f98ba613:/# apt-cache policy virtualenv
virtualenv:
  Installed: 15.1.0+ds-1.1
  Candidate: 15.1.0+ds-1.1
  Version table:
 *** 15.1.0+ds-1.1 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
        100 /var/lib/dpkg/status

root@aio1-utility-container-f98ba613:/# virtualenv --no-download /tmp/test1
Running virtualenv with interpreter /usr/bin/python2
New python executable in /tmp/test1/bin/python2
Also creating executable in /tmp/test1/bin/python
Installing setuptools, pkg_resources, pip, wheel...done.

root@aio1-utility-container-f98ba613:/# /tmp/test1/bin/pip2 install -U --extra-index-url=http://mirror.dfw.rax.openstack.org/wheel/ubuntu-18.04-x86_64 --trusted-host=mirror.dfw.rax.openstack.org pip setuptools wheel
Collecting pip
  Downloading https://files.pythonhosted.org/packages/d8/f3/413bab4ff08e1fc4828dfc59996d721917df8e8583ea85385d51125dceff/pip-19.0.3-py2.py3-none-any.whl (1.4MB)
    100% |████████████████████████████████| 1.4MB 720kB/s
Collecting setuptools
  Downloading https://files.pythonhosted.org/packages/44/56/75e64a8fbbe9e0bd30cfdd58ca1856bc0dc15a43e41504a58d8373f34213/setuptools-40.9.0-py2.py3-none-any.whl (575kB)
    100% |████████████████████████████████| 583kB 1.4MB/s
Collecting wheel
  Downloading https://files.pythonhosted.org/packages/96/ba/a4702cbb6a3a485239fbe9525443446203f00771af9ac000fa3ef2788201/wheel-0.33.1-py2.py3-none-any.whl
Installing collected packages: pip, setuptools, wheel
  Found existing installation: pip 9.0.1
    Uninstalling pip-9.0.1:
      Successfully uninstalled pip-9.0.1
  Found existing installation: setuptools 39.0.1
    Uninstalling setuptools-39.0.1:
      Successfully uninstalled setuptools-39.0.1
  Found existing installation: wheel 0.30.0
    Uninstalling wheel-0.30.0:
      Successfully uninstalled wheel-0.30.0
Successfully installed pip-19.0.3 setuptools-40.9.0 wheel-0.33.1