auto-switch tweaks.

2014-11-21 06:29:01 -08:00
parent c28716eada
commit e119bab555
3 changed files with 11 additions and 3 deletions
--- a/dotfiles/lib/python/wifi_auto_switch.py
+++ b/dotfiles/lib/python/wifi_auto_switch.py
@@ -90,7 +90,15 @@ class OSXSSIDToRSSI(object):
        return get_stdout_from_command(['airport', '--scan', '--xml'])

    def _get_scan_tree(self):
-        return etree.fromstring(self._get_scan_xml())
+        xml = self._get_scan_xml()
+        for i in range(10):
+            if xml:
+                break
+            xml = self._get_scan_xml()
+        else:
+            Exception("Airport command did not provide output.")
+        return etree.fromstring(xml)
+

    _network_xpb = dxpb.array.dict
    _ssid_xpb = xpb.key.text_contains_("SSID_STR")