Fix GLib.Source sub-classing with initializer args

Add variable args and keyword args to the GLib.Source.__new__
method to support sub-classes which want to implement __init__.

https://bugzilla.gnome.org/show_bug.cgi?id=707904

2 files changed, 12 insertions, 1 deletions

diff --git a/gi/overrides/GLib.py b/gi/overrides/GLib.py
index 0a4cdb6a..f4b1ef57 100644
--- a/gi/overrides/GLib.py
+++ b/gi/overrides/GLib.py
@@ -536,7 +536,7 @@ __all__.append('MainContext')
 
 
 class Source(GLib.Source):
-    def __new__(cls):
+    def __new__(cls, *args, **kwargs):
         # use our custom pyg_source_new() here as g_source_new() is not
         # bindable
         source = source_new()
diff --git a/tests/test_source.py b/tests/test_source.py
index 5b3b51ba..d0e28e4e 100644
--- a/tests/test_source.py
+++ b/tests/test_source.py
@@ -214,6 +214,17 @@ class TestSource(unittest.TestCase):
         del source
         self.assertTrue(self.finalized)
 
+    def test_extra_init_args(self):
+        class SourceWithInitArgs(GLib.Source):
+            def __init__(self, arg, kwarg=None):
+                super(SourceWithInitArgs, self).__init__()
+                self.arg = arg
+                self.kwarg = kwarg
+
+        source = SourceWithInitArgs(1, kwarg=2)
+        self.assertEqual(source.arg, 1)
+        self.assertEqual(source.kwarg, 2)
+
 
 class TestUserData(unittest.TestCase):
     def test_idle_no_data(self):