Cleanup unused modules and imports

* Ran code through PyFlakes

plexpy/http_handler.py

@@ -70,7 +70,6 @@ class HTTPHandler(object):
             else:
                 handler = HTTPConnection(host=self.host, port=self.port, timeout=timeout)
 
-            token_string = ''
             if not no_token:
                 if headers:
                     headers.update({'X-Plex-Token': self.token})
@@ -86,10 +85,10 @@ class HTTPHandler(object):
                 request_status = response.status
                 request_content = response.read()
                 content_type = response.getheader('content-type')
-            except IOError, e:
+            except IOError as e:
                 logger.warn(u"Failed to access uri endpoint %s with error %s" % (uri, e))
                 return None
-            except Exception, e:
+            except Exception as e:
                 logger.warn(u"Failed to access uri endpoint %s. Is your server maybe accepting SSL connections only? %s" % (uri, e))
                 return None
             except: