Allow Job to be weak-referenced (#470)

2 files changed, 11 insertions, 1 deletions

diff --git a/apscheduler/job.py b/apscheduler/job.py
index 5c1b75d..7d609fa 100644
--- a/apscheduler/job.py
+++ b/apscheduler/job.py
@@ -40,7 +40,7 @@ class Job(object):
 
     __slots__ = ('_scheduler', '_jobstore_alias', 'id', 'trigger', 'executor', 'func', 'func_ref',
                  'args', 'kwargs', 'name', 'misfire_grace_time', 'coalesce', 'max_instances',
-                 'next_run_time')
+                 'next_run_time', '__weakref__')
 
     def __init__(self, scheduler, id=None, **kwargs):
         super(Job, self).__init__()
diff --git a/tests/test_job.py b/tests/test_job.py
index 9dc9210..9405554 100644
--- a/tests/test_job.py
+++ b/tests/test_job.py
@@ -1,4 +1,6 @@
 # coding: utf-8
+import gc
+import weakref
 from datetime import datetime, timedelta
 from functools import partial
 
@@ -64,6 +66,14 @@ def test_remove(job):
     job._scheduler.remove_job.assert_called_once_with(job.id, None)
 
 
+def test_weakref(create_job):
+    job = create_job(func=dummyfunc)
+    ref = weakref.ref(job)
+    del job
+    gc.collect()
+    assert ref() is None
+
+
 def test_pending(job):
     """
     Tests that the "pending" property return True when _jobstore_alias is a string, ``False``