Allow cast(...) to python types.

Cython/Compiler/ExprNodes.py

@@ -9625,8 +9625,7 @@ class TypecastNode(ExprNode):
                 return CoerceIntToBytesNode(self.operand, env)
             elif self.operand.type.can_coerce_to_pyobject(env):
                 self.result_ctype = py_object_type
-                base_type = self.base_type.analyse(env)
-                self.operand = self.operand.coerce_to(base_type, env)
+                self.operand = self.operand.coerce_to(self.type, env)
             else:
                 if self.operand.type.is_ptr:
                     if not (self.operand.type.base_type.is_void or self.operand.type.base_type.is_struct):

Cython/Compiler/ParseTreeTransforms.py

@@ -2707,7 +2707,8 @@ class TransformBuiltinMethods(EnvTransform):
                 else:
                     type = node.args[0].analyse_as_type(self.current_env())
                     if type:
-                        node = ExprNodes.TypecastNode(node.function.pos, type=type, operand=node.args[1])
+                        node = ExprNodes.TypecastNode(
+                            node.function.pos, type=type, operand=node.args[1], typecheck=False)
                     else:
                         error(node.args[0].pos, "Not a type")
             elif function == u'sizeof':