change TypeError to warning

theano/compile/function.py

@@ -12,6 +12,7 @@ from function_module import orig_function
 from profiling import ProfileStats
 from pfunc import pfunc
 from numpy import any  # to work in python 2.4
+import warnings
 
 def function(inputs, outputs=None, mode=None, updates=None, givens=None,
              no_default_updates=False, accept_inplace=False, name=None,
@@ -165,7 +166,7 @@ def function(inputs, outputs=None, mode=None, updates=None, givens=None,
     # I use the string value of the type to do type checking here since
     # OrderedDict is not available in python2.4
     if isinstance(updates, dict) and 'Ordered' not in str(type(updates)):
-        raise TypeError("Expected OrderedDict, got "+str(type(updates))+ "Using "
+        warnings.warn("Expected OrderedDict, got "+str(type(updates))+ "Using "
         "a standard dictionary here results in "
             "non-deterministic behavior. You should use an OrderedDict"
             " if you are using python2.7 or use a list of (shared, update)"