Open Stack

Hi,
I tried to run tests after I changed some codes in python neutron client,
But I failed.
Could someone please help me out?

$ tox -e py27
GLOB sdist-make: /mnt/data/opt/stack/python-neutronclient/setup.py
py27 create: /mnt/data/opt/stack/python-neutronclient/.tox/py27
py27 installdeps:
-r/mnt/data/opt/stack/python-neutronclient/requirements.txt,
-r/mnt/data/opt/stack/python-neutronclient/test-requirements.txt
ERROR: invocation failed, logfile:
/mnt/data/opt/stack/python-neutronclient/.tox/py27/log/py27-1.log
ERROR: actionid=py27
msg=getenv
cmdargs=[local('/mnt/data/opt/stack/python-neutronclient/.tox/py27/bin/pip'),
'install', '--pre',
'-r/mnt/data/opt/stack/python-neutronclient/requirements.txt',
'-r/mnt/data/opt/stack/python-neutronclient/test-requirements.txt']
...................
Usage:
  pip install [options] <requirement specifier> ...
  pip install [options] -r <requirements file> ...
  pip install [options] [-e] <vcs project url> ...
  pip install [options] [-e] <local project path> ...
  pip install [options] <archive url/path> ...

no such option: --pre

ERROR: could not install deps
[-r/mnt/data/opt/stack/python-neutronclient/requirements.txt,
-r/mnt/data/opt/stack/python-neutronclient/test-requirements.txt]


$ tox --version
1.6.1 imported from /usr/local/lib/python2.7/dist-packages/tox/__init__.pyc
$ pip --version
pip 1.4.1 from /usr/local/lib/python2.7/dist-packages/pip-1.4.1-py2.7.egg
(python 2.7)

$ cat /etc/issue
Ubuntu 13.04 \n \l

Regards,
Yong Sheng Gong
UnitedStack Inc.
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