Small fixes as found in staging.

appengine/third_party/python-adb/adb/parallel.py

Index: appengine/third_party/python-adb/adb/parallel.py
diff --git a/appengine/third_party/python-adb/adb/parallel.py b/appengine/third_party/python-adb/adb/parallel.py
index 4692600ac540afa8c65ac03a66e1da03d011c836..48d91f5046823f17a918baf77d622a50279a9d16 100644
--- a/appengine/third_party/python-adb/adb/parallel.py
+++ b/appengine/third_party/python-adb/adb/parallel.py
@@ -65,12 +65,16 @@ def _pmap(pool, queue_in, queue_out, fn, items):
   for index, item in enumerate(items):
     queue_in.put((index, fn, item))
   out = [None] * len(items)
+  e = None
   for _ in xrange(len(items)):
     index, result = queue_out.get()
     if index < 0:
       # This is an exception.
-      raise result[0], result[1], result[2]
-    out[index] = result
+      e = result

[ghost stip (do not use), 2015/11/03 18:50:47]

and I guess we'll just clobber repeated errors

[M-A Ruel, 2015/11/04 18:39:10]

yes

+    else:
+      out[index] = result
+  if e:
+    raise e[0], e[1], e[2]
   return out