added first module testcase! option to initialize Member on allocate

theano/compile/module.py

@@ -268,7 +268,7 @@ class Member(_RComponent):
         r = self.r
         if memo and r in memo:
             return memo[r]
-        rval = gof.Container(r, storage = [None])
+        rval = gof.Container(r, storage = [getattr(r, 'data', None)])
         memo[r] = io.In(result = r, value = rval, mutable = False)
         return memo[r]
 

theano/compile/tests/test_module.py

+from theano.compile.module import *
+import theano.tensor as T
+
+def test_whats_up_with_submembers():
+    class Blah(FancyModule):
+        def __init__(self, stepsize):
+            super(Blah, self).__init__()
+            self.stepsize = Member(T.value(stepsize))
+            x = T.dscalar()
+            
+            self.step = Method([x], x - self.stepsize)
+
+    B = Blah(0.0)
+    b = B.make(mode='FAST_RUN')
+    b.step(1.0)
+    print b.stepsize
+    assert b.stepsize == 0.0