Register ScalarConstant as Scalar.Constant

This solves a problem uncovered by the previous commit: a variable with an ndim field could be replaced by a Variable without one.

Register ScalarConstant as Scalar.Constant
cb8888ed · Pascal Lamblin · Frederic · 72a122c1 · cb8888ed
--- a/theano/scalar/basic.py
+++ b/theano/scalar/basic.py
@@ -561,6 +561,9 @@ class ScalarVariable(_scalar_py_operators, Variable):
 class ScalarConstant(_scalar_py_operators, Constant):
    pass

+# Register ScalarConstant as the type of Constant corresponding to Scalar
+Scalar.Constant = ScalarConstant
+

 # Easy constructors