Typo fixes

theano/configdefaults.py

@@ -120,10 +120,10 @@ del dummy_stdin
 #Keep the default optimizer the same as the one for the mode FAST_RUN
 AddConfigVar('allow_gc',
              "Do we default to delete intermediate results during Theano"
-             " function call? Doing so lower the memory requirement, but ask"
-             " that we reallocate memory at the next function call."
-             " This is implemented for the default linker, but not work all"
-             " linker",
+             " function calls? Doing so lowers the memory requirement, but"
+             " asks that we reallocate memory at the next function call."
+             " This is implemented for the default linker, but may not work"
+             " for all linkers.",
              BoolParam(True),
              in_c_key=False)
 

theano/gof/tests/test_vm.py

@@ -295,11 +295,10 @@ class RunOnce(theano.Op):
 def test_vm_gc():
     """This already caused a bug in the trunk of Theano.
 
-    The bug was introduced in the trunk the July 5, 2012 and fixed the
-    July 30
+    The bug was introduced in the trunk on July 5th, 2012 and fixed on
+    July 30th.
 
     """
-    pass
     x = theano.tensor.vector()
     p = RunOnce()(x)
     mode = theano.Mode(linker=theano.gof.vm.VM_Linker(lazy=True))

theano/gof/vm.py

@@ -40,7 +40,7 @@ def filter_vm_lazy(val):
 AddConfigVar('vm.lazy',
              "Useful only for the vm linkers. When lazy is None,"
              " auto detect if lazy evaluation is needed and use the apropriate"
-             " version. If lazy it True/False, force the version used between"
+             " version. If lazy is True/False, force the version used between"
              " Loop/LoopGC and Stack.",
          ConfigParam('None', filter_vm_lazy))
 
@@ -396,7 +396,7 @@ class Stack(VM):
                                     #current_apply is still in the
                                     #stack, this will cause it to be
                                     #recomputed! This can cause wrong value
-                                    #with some combiation of inplace op.
+                                    #with some combination of inplace op.
                                     compute_map[i][0] = 2
                                     if (config.warn.vm_gc_bug and
                                         current_apply in apply_stack and
@@ -471,7 +471,7 @@ class Stack(VM):
                                 if empty_storage_map:
                                     storage_map[i][0] = None
                                     #See the not lazy gc code for explanations
-                                    #Of compute_map change
+                                    #of compute_map change
                                     compute_map[i][0] = 2
 
         # Hacky coarse gc final pass
@@ -513,7 +513,7 @@ class VM_Linker(link.LocalLinker):
         allow_gc - force the virtual machine to clean up unnecessary
             references, in order to allow garbage collection on
             intermediate values during computation of a function.
-            If None use as default the Theano flag allow_gc value.
+            If None use as default the value of the Theano flag allow_gc.
 
         use_cloop - use the C-based virtual machine if possible