.

wcfs/wcfs_test.py

@@ -236,6 +236,7 @@ class tDB:
             assert 0 == subprocess.call(["mountpoint", "-q", testmntpt])
             subprocess.check_call(["fusermount", "-u", testmntpt])
 
+            # XXX errctx "wait wcfs exit"
             wg = sync.WorkGroup(timeout())
             def _(ctx):
                 while 1:
@@ -1970,7 +1971,8 @@ def _xdefer(f):
         try:
             f()
         except:
-            traceback.print_exception(exc_type, exc_value, exc_traceback)
+            if exc_type is not None:
+                traceback.print_exception(exc_type, exc_value, exc_traceback)
             raise
     _defer(_)