virtualenv --no-site-packages /opt/noc
The --no-site-packages flag is deprecated; it is now the default behavior.
New python executable in /opt/noc/bin/python
Installing distribute.................................done.
Installing pip.............................
  Complete output from command /opt/noc/bin/easy_install /usr/share/python-vi...p-1.1.debian1.tar.gz:
  Traceback (most recent call last):
  File "/opt/noc/bin/easy_install", line 11, in <module>
    sys.exit(main())
  File "/opt/noc/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 2147, in main
    lambda: setup(
  File "/opt/noc/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 2133, in with_ei_usage
    return f()
  File "/opt/noc/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 2150, in <lambda>
    distclass=DistributionWithoutHelpCommands, **kw
  File "/usr/lib/python2.7/distutils/core.py", line 151, in setup
    dist.run_commands()
  File "/usr/lib/python2.7/distutils/dist.py", line 953, in run_commands
    self.run_command(cmd)
  File "/usr/lib/python2.7/distutils/dist.py", line 971, in run_command
    cmd_obj.ensure_finalized()
  File "/usr/lib/python2.7/distutils/cmd.py", line 109, in ensure_finalized
    self.finalize_options()
  File "/opt/noc/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 218, in finalize_options
    prefix, exec_prefix = get_config_vars('prefix', 'exec_prefix')
  File "/usr/lib/python2.7/sysconfig.py", line 528, in get_config_vars
    _init_posix(_CONFIG_VARS)
  File "/usr/lib/python2.7/sysconfig.py", line 412, in _init_posix
    from _sysconfigdata import build_time_vars
  File "/usr/lib/python2.7/_sysconfigdata.py", line 6, in <module>
    from _sysconfigdata_nd import *
ImportError: No module named _sysconfigdata_nd
----------------------------------------
...Installing pip...done.
Traceback (most recent call last):
  File "/usr/bin/virtualenv", line 3, in <module>
    virtualenv.main()
  File "/usr/lib/python2.7/dist-packages/virtualenv.py", line 938, in main
    never_download=options.never_download)
  File "/usr/lib/python2.7/dist-packages/virtualenv.py", line 1054, in create_environment
    install_pip(py_executable, search_dirs=search_dirs, never_download=never_download)
  File "/usr/lib/python2.7/dist-packages/virtualenv.py", line 643, in install_pip
    filter_stdout=_filter_setup)
  File "/usr/lib/python2.7/dist-packages/virtualenv.py", line 1016, in call_subprocess
    % (cmd_desc, proc.returncode))
OSError: Command /opt/noc/bin/easy_install /usr/share/python-vi...p-1.1.debian1.tar.gz failed with error code 1