Installation
************

Warning: We advise installing virtualenv-1.9 or greater. Prior to
  version 1.9, the pip included in virtualenv did not download from
  PyPI over SSL.

Warning: When using pip to install virtualenv, we advise using pip
  1.3 or greater. Prior to version 1.3, pip did not download from PyPI
  over SSL.

Warning: We advise against using easy_install to install virtualenv
  when using setuptools < 0.9.7, because easy_install didn’t download
  from PyPI over SSL and was broken in some subtle ways.

To install globally with *pip* (if you have pip 1.3 or greater
installed globally):

   $ [sudo] pip install virtualenv

Or to get the latest unreleased dev version:

   $ [sudo] pip install https://github.com/pypa/virtualenv/tarball/develop

To install version X.X globally from source:

   $ curl -O https://pypi.python.org/packages/source/v/virtualenv/virtualenv-X.X.tar.gz
   $ tar xvfz virtualenv-X.X.tar.gz
   $ cd virtualenv-X.X
   $ [sudo] python setup.py install

To *use* locally from source:

   $ curl -O https://pypi.python.org/packages/source/v/virtualenv/virtualenv-X.X.tar.gz
   $ tar xvfz virtualenv-X.X.tar.gz
   $ cd virtualenv-X.X
   $ python virtualenv.py myVE

Note: The "virtualenv.py" script is *not* supported if run without
  the necessary pip/setuptools/virtualenv distributions available
  locally. All of the installation methods above include a
  "virtualenv_support" directory alongside "virtualenv.py" which
  contains a complete set of pip and setuptools distributions, and so
  are fully supported.
