CC-4965: Fix airtime-silan import tool

-various fixes

utils/airtime-silan.py

@@ -1,11 +1,12 @@
-import logging
+from configobj import ConfigObj
 from api_clients import api_client as apc
+
+import logging
 import json
 import shutil
 import commands
 import os
 import sys
-from configobj import ConfigObj
 import subprocess
 import traceback
 
@@ -19,16 +20,16 @@ logging.disable(50)
 # add ch to logger
 logger.addHandler(ch)
 
-if (os.geteuid() != 0):
+if os.geteuid() != 0:
     print 'Must be a root user.'
-    sys.exit()
+    sys.exit(1)
 
 # loading config file
 try:
     config = ConfigObj('/etc/airtime/media-monitor.cfg')
 except Exception, e:
     print('Error loading config file: %s', e)
-    sys.exit()
+    sys.exit(1)
 
 api_client = apc.AirtimeApiClient(config)
 
@@ -58,7 +59,7 @@ try:
                 data['cueout'] = str('{0:f}'.format(info['sound'][-1][1]))
                 processed_data.append((f['id'], data))
                 total += 1
-                if (total % 5 == 0):
+                if total % 5 == 0:
                     print "Total %s / %s files has been processed.." % (total, total_files)
             except Exception, e:
                 print e
@@ -77,5 +78,3 @@ try:
 except Exception, e:
     print e
     print traceback.format_exc()
-
-#update_cue_values_by_silan