Added a little locking, seems to have fixed the segmentation fault

apithreads.py

@@ -1,6 +1,7 @@
 # Python module that handles calls to the twitter API as a separate thread
 
 import re
+import gtk
 from threading import Thread
 
 class GetTweets(Thread):
@@ -44,7 +45,11 @@ class GetTweets(Thread):
         else:
             statuses = results_to_statuses(self.api.Search(self.list_name, rpp=self.num_entries))
 
+        gtk.gdk.threads_enter()
+        try:
             self.pane.update_window(statuses)
+        finally:
+            gtk.gdk.threads_leave()
 
         print 'debug: GetTweets.run(): finished'
 

mytwitter.py

@@ -446,5 +446,6 @@ parser.add_option('-c' ,'--config', dest="filename", default="~/.mytwitter.conf"
 (options, args) = parser.parse_args()
 
 my_twitter = MyTwitter(options.filename)
+
 gtk.gdk.threads_init()
 gtk.main()