test running the program through bash script

run

@@ -0,0 +1,3 @@
+#!/bin/bash
+stdbuf -oL python vpn_indicator.py > indicator.log &
+sudo python vpnproxy_tui.py

vpn_indicator.py

@@ -4,20 +4,34 @@
 
 from Queue import Empty, Queue
 from threading import Thread
-from subprocess import call
+from subprocess import call, Popen, PIPE
 import select
-import signal, os
+import signal, os, sys
 import socket, errno
 import time
+import platform
+
+if 'buntu' in platform.platform() and \
+        not Popen(['pgrep', '-f', 'python vpn_indicator.py'], stdout=PIPE).communicate()[0]:
+    print 'Launch vpn_indicator'
+else:
+    sys.exit()
 
 try:
+    import gi
+    gi.require_version('Gtk', '3.0')
     from gi.repository import Gtk, GLib
+
+    gi.require_version('AppIndicator3', '0.1')
     from gi.repository import AppIndicator3 as appindicator
+
+    gi.require_version('Notify', '0.7')
     from gi.repository import Notify as notify
 except ImportError:
-    print 'Lack of Gtk related modules!'
-    print 'VPN indicator will not run!'
-    print 'You should try "sudo apt-get install gir1.2-appindicator3-0.1"'
+    print >> sys.stderr, 'Lack of Gtk related modules!'
+    print >> sys.stderr, 'VPN indicator will not run!'
+    print >> sys.stderr, 'You should try "sudo apt-get install gir1.2-appindicator3-0.1 python-gobject"'
+    sys.exit()
 
 
 class InfoServer:

vpnproxy_tui.py

@@ -1022,7 +1022,9 @@ def exit(self, loop, data=None):
 from ui_elements import *
 
 # -------- all dependencies should be available after this line --------
-# raw_input('haha')
+# raw_input('for debugging')
+
+# clear system proxy so that request only go through the one specified
 screen = Display(vpn_connect)
 screen.get_data_status = 'call'
 screen.run()