Merge pull request #1758 from bartvm/patch-1

doc/install.txt

-
 .. _install:
 
 
@@ -130,20 +129,11 @@ by typing
 
 You may need to add ``sudo``  before this command to install into your
 system's ``site-packages`` directory. If you do not have administrator access
-to your machine, you can install to an alternate prefix using
+to your machine, you can install Theano locally (to ~/.local) using
 
 .. code-block:: bash
 
-    pip install Theano --install-option='--prefix=~/.local'
-
-e.g. using ``--install-option='--prefix=~/.local'`` on Python 2.4 would
-install Theano into ``.local/lib/python2.4/site-packages`` inside your home
-directory on Mac OS X or Unix/Linux (this ``site-packages`` directory must be
-listed in your ``PYTHONPATH`` environment variable; for Python 2.6 and later,
-``~/.local`` is
-automatically searched and does *not* need to be explicitly included in
-``PYTHONPATH``, see :ref:`config_pythonpath` for instructions).
-You can change ``~/.local``, but you need to change your ``PYTHONPATH`` as said above.
+    pip install Theano --user
 
 Alternatively you can use virtualenv_ to create an isolated ``site-packages``
 directory; see the `virtualenv documentation`_ for details.
@@ -225,7 +215,7 @@ or (if you want to install it for the current user only):
 
 .. code-block:: bash
 
-    pip install --upgrade --no-deps git+git://github.com/Theano/Theano.git --install-option='--prefix=~/.local'
+    pip install --upgrade --no-deps git+git://github.com/Theano/Theano.git --user
 
 The following are general instructions that will set you up with the
 bleeding-edge version of Theano and allow you to hack it. First,