[kteam-tools][PATCH] ktl: fix new-package crash: no attribute 'stakeholder'

[Kamal Mostafa]

Fix crashes when using create-release-tracker --new-package.

Be more careful to not dereference possible NoneType returns from LP API
(as for brand new packages) when looking for the 'stakeholder' attribute.

  File "/home/kamal/src/ckt/kteam-tools/stable/ktl/workflow.py", in assignee_ex
    cursor = cursor.lookup_source(packagename)
    retval = cursor.stakeholder

  AttributeError: 'NoneType' object has no attribute 'stakeholder'

Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 ktl/tracking_bug.py | 2 +-
 ktl/workflow.py     | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/ktl/tracking_bug.py b/ktl/tracking_bug.py
index efea367..bd26f79 100644
--- a/ktl/tracking_bug.py
+++ b/ktl/tracking_bug.py
@@ -109,7 +109,7 @@ class TrackingBug:
             if lp_series.name == 'stakeholder-signoff':
                 cursor = self.kernel_series.lookup_series(codename=targeted_series_name)
                 cursor = cursor.lookup_source(package)
-                if cursor.stakeholder is None:
+                if cursor and cursor.stakeholder is None:
                     cdebug('    no stakeholder-signoff', 'yellow')
                     break
             if lp_series.name == 'promote-to-release' and not self.isdev:
diff --git a/ktl/workflow.py b/ktl/workflow.py
index b71e02f..76f83b0 100644
--- a/ktl/workflow.py
+++ b/ktl/workflow.py
@@ -231,8 +231,9 @@ class Workflow:
             ks = KernelSeries()
             cursor = ks.lookup_series(codename=series_codename)
             cursor = cursor.lookup_source(packagename)
-            retval = cursor.stakeholder
-        else:
+            if cursor:
+                retval = cursor.stakeholder
+        if not retval:
             retval = self.assignee(packagename, taskname, devel)
         return retval
 
-- 
2.7.4