improve example: show error message and allow sys.argv[1] to be specified

svn path=/trunk/; revision=833

1 files changed, 13 insertions, 3 deletions

diff --git a/examples/gio/directory-async.py b/examples/gio/directory-async.py
index 439e62e4..49d2a4b0 100644
--- a/examples/gio/directory-async.py
+++ b/examples/gio/directory-async.py
@@ -1,17 +1,27 @@
+import sys
+
 import gobject
 import gio
 
 def next_files_done(enumerator, result):
-    print 'done!'
     for file_info in enumerator.next_files_finish(result):
         print file_info.get_name()
     loop.quit()
 
 def enumerate_children_done(gfile, result):
-    enumerator = gfile.enumerate_children_finish(result)
+    try:
+        enumerator = gfile.enumerate_children_finish(result)
+    except gobject.GError, e:
+        print 'ERROR:', e
+        loop.quit()
+        return
     enumerator.next_files_async(10, next_files_done)
 
-gfile = gio.File("/")
+if len(sys.argv) >= 2:
+    uri = sys.argv[1]
+else:
+    uri = "/"
+gfile = gio.File(uri)
 gfile.enumerate_children_async(
     "standard::name", enumerate_children_done)