<html> <head> <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> </head> <body text="#000000" bgcolor="#FFFFFF"> I'm trying to access colord from Python using the GIR bindings. I can connect to colord and perform simple queries, but queries that return a list are not working. Here's an example that attempts to distill the problem, (The direct accesses for printing the client.ref_count and dev.ref_count values work on Ubuntu 13.04 by not Fedora 18, so are commented out. ) The problem arises when trying to access one device in the list returned by client.get_devices_sync(cancellable). Trying to do dev.connect_sync() on the device in the list causes a seg fault. If I insert the dir(dev) line, that fails with the slightly more useful error message: ERROR:../../../gi/_gobject/pygobject.c:618:pygobject_switch_to_toggle_ref: assertion failed: (self->obj->ref_count >= 1) Aborted (core dumped) What am I doing wrong? Sanford def simple_failure(): print "(wrapcolord.simple_failure) Starting" cancellable = Gio.Cancellable.new(); client = Colord.Client.new() print dir(client) # works # no client.ref_count attribute on Fedora # print "Before client.connect_sync(), client.ref_count=", client.ref_count # 1 client.connect_sync(cancellable) # print "After client.connect_sync(), client.ref_count=%d" % client.ref_count # 2 print "daemon version=",client.get_daemon_version() # a simple call to show connection is working devices = client.get_devices_sync(cancellable) print ' len(devices) = ', len(devices) # 4 print dir(devices) # it's just a simple list for dev in devices: # print " One device. dev.ref_count = ", dev.ref_count # 0 !!! print dir(dev) # Assertion fails and abort dev.connect_sync(cancellable) # If print dir(dev) is commented out, seg fault here </body> </html>