theano.tensor.constant reshape fix

theano/tensor/basic.py

@@ -4126,9 +4126,14 @@ class Reshape(Op):
         x = as_tensor_variable(x)
         shp_orig = shp
         shp = as_tensor_variable(shp, ndim=1)
-        if not shp.dtype.startswith('int'):
+        if not shp.dtype.startswith('int') and not(isinstance(shp,
+                                                   TensorConstant)
+                                                   and shp.data.size == 0):
+            # if shp is an instace of TensorConstant and
+            # shp.data is empty, then shp.dtype is float64
             raise TypeError("Shape must be integers", shp, shp.dtype)
-        assert shp.ndim == 1
+        if not(isinstance(shp, TensorConstant) and not shp.data.size == 0):
+            assert shp.ndim == 1
         if isinstance(shp, TensorConstant):
             bcast = [s == 1 for s in shp.data]
             return gof.Apply(self, [x, shp], [tensor(x.type.dtype, bcast)])