Python 2/3 compatibility

- thread vs _thread
- future print_function

Author: jontsai

Diff for: lib/google/geocode/geocode.py

@@ -15,6 +15,9 @@
     701 1st Avenue, Sunnyvale, CA 94089, USA
 """
 
+# Future Imports
+from __future__ import print_function
+
 # Python Standard Library Imports
 import getopt
 import json

Diff for: middleware/classes.py

@@ -1,6 +1,7 @@
 # Python Standard Library Imports
 import datetime
 import re
+import sys
 
 # Django Imports
 from django.conf import settings
@@ -14,7 +15,12 @@
 from htk.utils import htk_setting
 from htk.utils.request import is_allowed_host
 
-import _thread
+
+is_py2 = sys.version[0] == '2'
+if is_py2:
+    import thread as _thread
+else:
+    import _thread
 
 
 class GlobalRequestMiddleware(MiddlewareMixin):

Diff for: monitor.py

@@ -1,3 +1,6 @@
+# Future Imports
+from __future__ import print_function
+
 # Python Standard Library Imports
 import atexit
 import os