Fixup remaining files.

doc/install.txt

@@ -328,10 +328,10 @@ Testing your installation
 Once you have installed Theano, you should run the test suite. At
 a Python (or IPython) interpreter,
 
-.. testcode::
+.. code-block:: python
 
     import theano
-    theano.test() # doctest: +SKIP
+    theano.test()
 
 You can also run them in-place from the Git checkout directory by typing
 

doc/install_windows.txt

@@ -585,7 +585,7 @@ follows:
      This setting can also be changed in Python for testing purpose (in which
      case it will remain only for the duration of your Python session):
 
-    .. testcode::
+    .. code-block:: python
 
         theano.config.blas.ldflags = "-LX:\\YYY\\YYY -lopenblas"
 

doc/internal/python.txt

@@ -37,14 +37,9 @@ Theano doesn't use your grandfather's python.
   * functions (function objects) can have attributes too. This technique
     is often used to define a function's error messages.
 
-    .. testcode::
-
-        def f(): return f.a
-        f.a = 5
-        f() 
-        
-    .. testoutput::
-    
+     >>> def f(): return f.a
+     >>> f.a = 5
+     >>> f()
      5
         
   * Warning about mutual imports: