# Pastebin eEBc7HUO
$ virtualenv --system-site-packages ~/virtualenv/python2.7
New python executable in /home/travis/virtualenv/python2.7/bin/python
Traceback (most recent call last):
  File "/usr/local/bin/virtualenv", line 11, in <module>
    sys.exit(main())
  File "/usr/local/lib/python2.7/dist-packages/virtualenv.py", line 824, in main
    symlink=options.symlink)
  File "/usr/local/lib/python2.7/dist-packages/virtualenv.py", line 984, in create_environment
    site_packages=site_packages, clear=clear, symlink=symlink))
  File "/usr/local/lib/python2.7/dist-packages/virtualenv.py", line 1427, in install_python
    raise e
OSError: [Errno 40] Too many levels of symbolic links