Minor typo fixes

doc/tutorial/extending_theano.txt

@@ -444,8 +444,8 @@ signature:
 
 .. note::
 
-    Not providing the `infer_shape` method cause shapes-related
-    optimization to not work with that op. For example
+    Not providing the `infer_shape` method prevents shape-related
+    optimizations from working with this op. For example
     `your_op(inputs, ...).shape` will need the op to be executed just
     to get the shape.
 
@@ -456,7 +456,7 @@ signature:
 
 .. note::
 
-    It converts the python function to a callable object that takes as
+    It converts the Python function to a callable object that takes as
     inputs Theano variables that were declared.
 
 

doc/tutorial/python.txt

@@ -11,6 +11,6 @@ tutorials/exercises if you need to learn it or only need a refresher:
   * `Python Challenge <http://www.pythonchallenge.com/>`__
   * `Dive into Python <http://diveintopython.net/>`__
   * `Google Python Class <http://code.google.com/edu/languages/google-python-class/index.html>`__
-  * `Enthought python course <https://training.enthought.com/?utm_source=academic&utm_medium=email&utm_campaign=EToD-Launch#/courses>`__ (free for academics)
+  * `Enthought Python course <https://training.enthought.com/?utm_source=academic&utm_medium=email&utm_campaign=EToD-Launch#/courses>`__ (free for academics)
 
 We have a tutorial on how :ref:`Python manages its memory <python-memory-management>`.

theano/sandbox/cuda/var.py

@@ -52,7 +52,7 @@ class CudaNdarrayConstant(_operators, Constant):
         try:
             data = str(numpy.asarray(self.data))
         except Exception, e:
-            data = "error while transfering the value:" + str(e)
+            data = "error while transferring the value: " + str(e)
         return "CudaNdarrayConstant{"+data+"}"
 CudaNdarrayType.Constant = CudaNdarrayConstant