lucid has seen the end of its life and is no longer receiving any
updates. Marking the lucid task for this ticket as "Won't Fix".
** Changed in: pygobject (Ubuntu Lucid)
Status: Triaged => Won't Fix
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https://bugs.launchpad.net/bugs/588694
Title:
null-ok parameter annotation not correctly handled for virtual methods
Status in Python bindings for GObject:
Fix Released
Status in pygobject package in Ubuntu:
Fix Released
Status in pygobject source package in Lucid:
Won't Fix
Bug description:
Steps to reproduce:
1. Create a Python class which implement an interface which contains a method
with null-ok string parameter (gtk.Buildable.add_child)
2. Call this method from C with a null parameter (or use gtk.Builder in our
case)
3. application crashes with a segfault in the corresponding proxy method.
Test case:
1. Use upstream head Rhythmbox, or lucid Rhythmbox with patch from
https://bugzilla.gnome.org/show_bug.cgi?id=619677, so that impl_add_uri and
impl_want_uri RB functions are exposed to RB Python plugins
2. Add a trivial Python plugin that implements do_impl_{want,add}_uri
3. Run "rhythmbox testurl:///whatever" from the command line
4. Rhythmbox segfaults.
Code for example trivial Python plugin:
import rb, gobject
class ExampleURI(rb.Plugin):
def activate(self, shell):
self.source = gobject.new(MySource, shell=shell,plugin=self)
def deactivate(self, shell):
self.source.delete_thyself()
class MySource(rb.Source):
__gproperties__ = {
'plugin': (rb.Plugin, 'plugin', 'plugin',
gobject.PARAM_WRITABLE|gobject.PARAM_CONSTRUCT_ONLY),
}
def do_impl_want_uri(self, uri):
if uri.startswith("testuri://"): return 100
rb.Source.do_impl_want_uri(self, uri)
return 0
def do_impl_add_uri(self, uri, title, genre):
if not uri.startswith("testuri://"): return False
print "Hi! The testcase plugin got a uri: %s" % uri
return True
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