Comment 16 for bug 1229445

Following magnum quickstart: https://docs.openstack.org/developer/magnum/dev/quickstart.html
The following step fails:
    # run all tests (unit and pep8)
    tox
with error
  py27 runtests: commands[1] | bash tools/pretty_tox.sh
    running testr
    No module named gdbm
    error: testr failed (3)
    running=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
    OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
    OS_TEST_TIMEOUT=${OS_TEST_TIMEOUT:-45} \
    ${PYTHON:-python} -m subunit.run discover -t ./ ${OS_TEST_PATH:-./magnum/tests/unit} --list
    The test run didn't actually run any tests
    ERROR: InvocationError: '/bin/bash tools/pretty_tox.sh '