bug fix/cleanups

- Moved old docstring in OpFromGraph to function op_from_graph - Added an new example for op_from_graph docstring - now we can access `theano.op_from_graph` and `theano.OpFromGraph<Inline|Precompiled>` in `unittesttools.py`: ``` if check_topo: topo_shape = shapes_function.maker.fgraph.toposort() assert not any(isinstance(t.op, cls) for t in topo_shape) topo_out = outputs_function.maker.fgraph.toposort() assert any(isinstance(t.op, cls) for t in topo_out) ``` This seems to check existence of op in `topo_out` regardless `check_topo`. Since OpFromGraphInline will be replaced with its internal graph at compile time, this check will always cause error. Thus I moved them inside the `if` clause.

bug fix/cleanups
7608602e · khaotik · khaotik · 85a1ae51 · 7608602e · 7608602e
--- a/theano/__init__.py
+++ b/theano/__init__.py
@@ -68,7 +68,8 @@ from theano.compile import (
    SymbolicOutput, Out,
    Mode,
    predefined_modes, predefined_linkers, predefined_optimizers,
-    FunctionMaker, function, function_dump, OpFromGraph,
+    FunctionMaker, function, function_dump,
+    OpFromGraph, OpFromGrpahInline, OpFromGraphPrecompiled, op_from_graph
    ProfileStats,
    Param, shared, as_op)

--- a/theano/compile/builders.py
+++ b/theano/compile/builders.py
--- a/theano/tests/unittest_tools.py
+++ b/theano/tests/unittest_tools.py
@@ -244,8 +244,8 @@ class InferShapeTester(unittest.TestCase):
        # Check that the Op is removed from the compiled function.
        if check_topo:
            topo_shape = shapes_function.maker.fgraph.toposort()
-            assert not any(isinstance(t.op, cls) for t in topo_shape)
            topo_out = outputs_function.maker.fgraph.toposort()
+            assert not any(isinstance(t.op, cls) for t in topo_shape)
            assert any(isinstance(t.op, cls) for t in topo_out)
        # Check that the shape produced agrees with the actual shape.
        numeric_outputs = outputs_function(*numeric_inputs)