Added .take() member function, added test, fixed axis=None case.

theano/tensor/basic.py

@@ -1705,6 +1705,9 @@ class _tensor_py_operators:
                 return Subtensor(args)(self, *Subtensor.collapse(args,
                     lambda entry: isinstance(entry, Variable)))
 
+    def take(self, indices, axis=None, mode='raise'):
+        return take(self, indices, axis, mode)
+        
     # COPYING
     def copy(self):
         return tensor_copy(self)
@@ -6853,7 +6856,7 @@ def take(a, indices, axis=None, mode='raise'):
     # Reuse advanced indexing in supported cases.
     if axis is None:
         if indices.ndim == 1:
-            return a.flatten[indices]
+            return a.flatten()[indices]
     else:
         if indices.ndim == 0:
             item = [slice(None)] * a.ndim

theano/tensor/tests/test_basic.py

@@ -7167,6 +7167,10 @@ class TestTensorInstanceMethods(unittest.TestCase):
             assert_array_equal(X.diagonal(offset, axis1, axis2).eval({X: x}),
                                x.diagonal(offset, axis1, axis2))
 
+    def test_take(self):
+        X, _ = self.vars
+        x, _ = self.vals
+        assert_array_equal(X.take([1,0,3]).eval({X: x}), x.take([1,0,3]))
         
 if __name__ == '__main__':