tox -r fails to install os-resource-classes in extracted placement repo when running tests

[Matt Riedemann]

When trying to run py35 and functional-py35 tests in the extracted openstack/placement repo, it fails to install os-resource-classes even though that is in requirements.txt and I'm rebuilding the venv, e.g.:

osboxes@osboxes:~/git/placement$ tox -r -e py35
py35 recreate: /home/osboxes/git/placement/.tox/py35
py35 installdeps: -r/home/osboxes/git/placement/test-requirements.txt
py35 develop-inst: /home/osboxes/git/placement
py35 installed: alembic==1.0.7,amqp==2.4.1,appdirs==1.4.3,asn1crypto==0.24.0,atomicwrites==1.3.0,attrs==18.2.0,automaton==1.15.0,Babel==2.6.0,bandit==1.5.1,bcrypt==3.1.6,cachetools==3.1.0,castellan==1.2.0,certifi==2018.11.29,cffi==1.12.1,chardet==3.0.4,cliff==2.14.0,cmd2==0.8.9,colorama==0.4.1,coverage==4.5.2,cryptography==2.5,cursive==0.2.2,debtcollector==1.20.0,decorator==4.3.2,dnspython==1.15.0,dogpile.cache==0.7.1,eventlet==0.24.1,extras==1.0.0,fasteners==0.14.1,fixtures==3.0.0,flake8==2.5.5,future==0.17.1,futurist==1.8.0,gabbi==1.44.0,gitdb2==2.0.5,GitPython==2.1.11,greenlet==0.4.15,grpcio==1.15.0,hacking==0.12.0,idna==2.8,iso8601==0.1.12,Jinja2==2.10,jmespath==0.9.3,jsonpatch==1.23,jsonpath-rw==1.4.0,jsonpath-rw-ext==1.2.0,jsonpointer==2.0,jsonschema==2.6.0,keystoneauth1==3.11.2,keystonemiddleware==5.3.0,kombu==4.3.0,linecache2==1.0.0,lxml==4.3.1,Mako==1.0.7,MarkupSafe==1.1.0,mccabe==0.2.1,microversion-parse==0.2.1,mock==2.0.0,monotonic==1.5,more-itertools==6.0.0,mox3==0.26.0,msgpack==0.6.1,munch==2.3.2,netaddr==0.7.19,netifaces==0.10.9,networkx==2.2,numpy==1.16.1,-e git://git.openstack.org/openstack/placement@530be3d3985f02e2eb7d45e6f2977b294eb9cc65#egg=openstack_placement,openstacksdk==0.24.0,os-brick==2.7.0,os-client-config==1.31.2,os-service-types==1.5.0,os-traits==0.11.0,os-vif==1.14.0,os-win==4.2.0,os-xenapi==0.3.4,osc-lib==1.12.0,oslo.cache==1.33.0,oslo.concurrency==3.29.0,oslo.config==6.8.0,oslo.context==2.22.0,oslo.db==4.44.0,oslo.i18n==3.23.0,oslo.log==3.42.2,oslo.messaging==9.4.0,oslo.middleware==3.37.0,oslo.policy==2.1.0,oslo.privsep==1.32.0,oslo.reports==1.29.1,oslo.rootwrap==5.15.1,oslo.serialization==2.28.1,oslo.service==1.37.0,oslo.utils==3.40.2,oslo.versionedobjects==1.35.0,oslotest==3.7.0,ovs==2.10.0,ovsdbapp==0.15.0,paramiko==2.4.2,Paste==3.0.6,PasteDeploy==2.0.1,pathlib2==2.3.3,pbr==5.1.2,pep8==1.5.7,placement==0.0.1.dev10681,pluggy==0.8.1,ply==3.11,prettytable==0.7.2,psutil==5.5.1,psycopg2==2.7.7,py==1.7.0,pyasn1==0.4.5,pyasn1-modules==0.2.4,pycadf==2.9.0,pycparser==2.19,pydot==1.4.1,pyflakes==0.8.1,pyinotify==0.9.6,PyJWT==1.7.1,PyMySQL==0.9.3,PyNaCl==1.3.0,pyOpenSSL==19.0.0,pyparsing==2.3.1,pyperclip==1.7.0,pypowervm==1.1.20,pyroute2==0.5.3,pytest==4.3.0,python-barbicanclient==4.8.1,python-cinderclient==4.1.0,python-dateutil==2.8.0,python-editor==1.0.4,python-glanceclient==2.15.0,python-keystoneclient==3.18.0,python-mimeparse==1.6.0,python-neutronclient==6.11.0,python-subunit==1.3.0,pytz==2018.9,PyYAML==3.13,repoze.lru==0.7,requests==2.21.0,requestsexceptions==1.4.0,retrying==1.3.3,rfc3986==1.2.0,Routes==2.4.1,simplejson==3.16.0,six==1.12.0,smmap2==2.0.5,sortedcontainers==2.1.0,SQLAlchemy==1.2.18,sqlalchemy-migrate==0.12.0,sqlparse==0.2.4,statsd==3.3.0,stestr==2.2.0,stevedore==1.30.0,taskflow==3.4.0,Tempita==0.5.2,tenacity==5.0.3,testresources==2.0.1,testscenarios==0.5.0,testtools==2.3.0,tooz==1.64.1,traceback2==1.4.0,unittest2==1.1.0,urllib3==1.24.1,vine==1.2.0,voluptuous==0.11.5,warlock==1.3.0,wcwidth==0.1.7,WebOb==1.8.5,websockify==0.8.0,wrapt==1.11.1,wsgi-intercept==1.8.0,yappi==0.99,zVMCloudConnector==1.4.0
py35 runtests: PYTHONHASHSEED='3780858058'
py35 runtests: commands[0] | find . -type f -name '*.pyc' -delete
py35 runtests: commands[1] | stestr run

=========================
Failures during discovery
=========================
--- import errors ---
Failed to import test module: placement.tests.unit.cmd.test_manage
Traceback (most recent call last):
  File "/home/osboxes/git/placement/.tox/py35/lib/python3.5/site-packages/unittest2/loader.py", line 456, in _find_test_path
    module = self._get_module_from_name(name)
  File "/home/osboxes/git/placement/.tox/py35/lib/python3.5/site-packages/unittest2/loader.py", line 395, in _get_module_from_name
    __import__(name)
  File "/home/osboxes/git/placement/placement/tests/unit/cmd/test_manage.py", line 21, in <module>
    from placement.cmd import manage
  File "/home/osboxes/git/placement/placement/cmd/manage.py", line 29, in <module>
    from placement.objects import resource_provider as rp_obj
  File "/home/osboxes/git/placement/placement/objects/resource_provider.py", line 24, in <module>
    import os_resource_classes as orc
ImportError: No module named 'os_resource_classes'

When I hit this I have to manually source the venv and install the library, which is unfortunate.

[Matt Riedemann (mriedem)]

Here are my pip and tox versions:

osboxes@osboxes:~/git/placement$ pip show pip tox
---
Metadata-Version: 1.1
Name: pip
Version: 8.1.1
Summary: The PyPA recommended tool for installing Python packages.
Home-page: https://pip.pypa.io/
Author: The pip developers
Author-email: <email address hidden>
License: MIT
Location: /usr/lib/python2.7/dist-packages
Requires:
Classifiers:
  Development Status :: 5 - Production/Stable
  Intended Audience :: Developers
  License :: OSI Approved :: MIT License
  Topic :: Software Development :: Build Tools
  Programming Language :: Python :: 2
  Programming Language :: Python :: 2.6
  Programming Language :: Python :: 2.7
  Programming Language :: Python :: 3
  Programming Language :: Python :: 3.3
  Programming Language :: Python :: 3.4
  Programming Language :: Python :: 3.5
  Programming Language :: Python :: Implementation :: PyPy
Entry-points:
  [console_scripts]
  pip = pip:main
  pip2 = pip:main
  pip2.7 = pip:main
---
Metadata-Version: 2.1
Name: tox
Version: 3.1.1
Summary: virtualenv-based automation of test activities
Home-page: https://tox.readthedocs.org/
Author: holger krekel
Author-email: <email address hidden>
Installer: pip
License: http://opensource.org/licenses/MIT
Location: /home/osboxes/.local/lib/python2.7/site-packages
Requires: packaging, py, six, pluggy, virtualenv
Classifiers:
  Development Status :: 5 - Production/Stable
  Framework :: tox
  Intended Audience :: Developers
  License :: OSI Approved :: MIT License
  Operating System :: POSIX
  Operating System :: Microsoft :: Windows
  Operating System :: MacOS :: MacOS X
  Topic :: Software Development :: Testing
  Topic :: Software Development :: Libraries
  Topic :: Utilities
  Programming Language :: Python :: 2
  Programming Language :: Python :: 2.7
  Programming Language :: Python :: 3
  Programming Language :: Python :: 3.4
  Programming Language :: Python :: 3.5
  Programming Language :: Python :: 3.6
Entry-points:
  [console_scripts]
  tox = tox:cmdline
  tox-quickstart = tox._quickstart:main
You are using pip version 8.1.1, however version 19.0.2 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

[Matt Riedemann (mriedem)]

Had to also manually install oslo.upgradecheck.

[Matt Riedemann (mriedem)]

I completely deleted the local repo and re-cloned it and this time tox -r -e py35 works, so must have been something lingering.