Update some function definitions in py2stdlib's hashlib stub module

and make sure AST transforms without a predicate always match.

Test all this in a new testcase.

1 files changed, 1 insertions, 1 deletions

diff --git a/rebuilder.py b/rebuilder.py
index cf92da09..7f4c7a71 100644
--- a/rebuilder.py
+++ b/rebuilder.py
@@ -136,7 +136,7 @@ class TreeRebuilder(object):
             return node # no transform registered for this class of node
         orig_node = node # copy the reference
         for transform_func, predicate in transforms:
-            if predicate is not None and predicate(node):
+            if predicate is None or predicate(node):
                 ret = transform_func(node)
                 # if the transformation function returns something, it's
                 # expected to be a replacement for the node