tracker_service.py: use a lambda function to sort

As cmp is gone in py3. Also don't pass it as a positional argument.

1 files changed, 1 insertions, 1 deletions

diff --git a/bin/tracker_service.py b/bin/tracker_service.py
index 074669bade..26c479fff4 100755
--- a/bin/tracker_service.py
+++ b/bin/tracker_service.py
@@ -486,7 +486,7 @@ data source.""")],
 
             def gen_data():
                 notes_sorted = bug.notes[:]
-                notes_sorted.sort(lambda a, b: cmp(a.package, b.package))
+                notes_sorted.sort(key=lambda n: n.package)
                 for n in notes_sorted:
                     if n.release:
                         rel = str(n.release)