Cosmetic changes

theano/compile/function_module.py

@@ -531,28 +531,28 @@ class Function(object):
         for k, arg in kwargs.iteritems():
             self[k] = arg
 
-        ## Collect aliased inptus among the storage space
+        ## Collect aliased inputs among the storage space
         args_share_memory = []
         for i in xrange(len(self.input_storage)):
-            if self.input_storage[i].storage[0] != None:
+            if self.input_storage[i].storage[0] is not None:
                 is_aliased = False
                 for j in xrange(len(args_share_memory)):
-                    if  numpy.may_share_memory(
+                    if numpy.may_share_memory(
                             self.input_storage[i].storage[0] ,
                             self.input_storage[args_share_memory[j][0]].storage[0]):
                         is_aliased = True
-                        args_share_memory[j] += [i]
+                        args_share_memory[j].append(i)
                         break
 
                 if not is_aliased:
-                    args_share_memory.append( [i] )
+                    args_share_memory.append([i])
 
             # Check for groups of more than one argument that share memory
             for group in args_share_memory:
                 if len(group) > 1:
                     # see if any of these arguments are mutable
-                    mutable = numpy.any( [self.maker.inputs[idx].mutable for
-                                        idx in group])
+                    mutable = numpy.any([self.maker.inputs[idx].mutable
+                                         for idx in group])
                     # copy all but the first
                     for idx in group[1:]:
                         self.input_storage[i].storage[0] = copy.copy(