CCW#37: minor changes to comply with pep8 and docstrings.

theano/sparse/sandbox/sp.py

@@ -240,7 +240,7 @@ class Remove0(Op):
         if self.inplace:
             l.append('inplace')
         return self.__class__.__name__+'{%s}'%', '.join(l)
-    
+
     def make_node(self, x):
         return gof.Apply(self, [x], [x.type()])
 

theano/sparse/sandbox/test_sp.py

@@ -438,11 +438,12 @@ def test_remove0():
         print 'config: format=\'%(format)s\', matrix_class=%(matrix_class)s'%locals()
         # real
         origin = (numpy.arange(9) + 1).reshape((3, 3)).astype(theano.config.floatX)
-        with0 = matrix_class(origin).astype(theano.config.floatX)
-        
-        with0[0,1] = with0[1,0] = with0[2,2] = 0
-        assert with0.size == 9
-        
+        mat = matrix_class(origin).astype(theano.config.floatX)
+
+        mat[0,1] = mat[1,0] = mat[2,2] = 0
+
+        assert mat.size == 9
+
         # symbolic
         x = theano.sparse.SparseType(format=format, dtype=theano.config.floatX)()
         # the In thingy has to be there because theano has as rule not to optimize inputs
@@ -454,12 +455,12 @@ def test_remove0():
         v = [True for node in nodes if isinstance(node.op, sp.Remove0) and node.op.inplace]
         if v:
             assert any(v)
-        
+
         # checking
         # makes sense to change its name
-        target = with0
-        result = f(with0)
-        with0.eliminate_zeros()
+        target = mat
+        result = f(mat)
+        mat.eliminate_zeros()
         assert result.size == target.size, 'Matrices sizes differ. Have zeros been removed ?'
 
 def test_diagonal():
@@ -567,6 +568,9 @@ def test_col_scale():
         print >> sys.stderr, "WARNING: skipping gradient test because verify_grad doesn't support sparse arguments"
 
 if __name__ == '__main__':
+    if 1:
+        test_remove0()
+        exit()
     if 1:
         testcase =  TestSP
         suite = unittest.TestLoader()

theano/tensor/opt.py

@@ -731,7 +731,7 @@ class ShapeFeature(object):
 
     def default_infer_shape(self, node, i_shapes):
         """Return a list of shape tuple or None for the outputs of node.
-        
+
         This function is used for Ops that don't implement infer_shape.
         Ops that do implement infer_shape should use the i_shapes parameter,
         but this default implementation ignores it.
@@ -746,7 +746,7 @@ class ShapeFeature(object):
 
     def unpack(self, s_i):
         """Return a symbolic integer scalar for the shape element s_i.
-        
+
         The s_i argument was produced by the infer_shape() of an Op subclass.
         """
         # unpack the s_i that the Op returned
@@ -777,7 +777,7 @@ class ShapeFeature(object):
 
     def set_shape(self, r, s):
         """Assign the shape `s` to previously un-shaped variable `r`.
-        
+
         :type r: a variable
         :type s: None or a tuple of symbolic integers
         """
@@ -1951,6 +1951,7 @@ compile.optdb.register('local_inplace_incsubtensor1',
 @gof.local_optimizer([None])
 def local_inplace_remove0(node):
     """
+    Optimization to insert inplace versions of Remove0.
     """
     if isinstance(node.op, theano.sparse.sandbox.sp.Remove0) and not node.op.inplace:
         new_op = node.op.__class__(inplace=True)
@@ -1960,7 +1961,7 @@ def local_inplace_remove0(node):
 compile.optdb.register('local_inplace_remove0',
                        TopoOptimizer(local_inplace_remove0,
     failure_callback=TopoOptimizer.warn_inplace), 60,
-                       'fast_run', 'inplace')  # DEBUG
+                       'fast_run', 'inplace')
 
 
 @register_canonicalize