remove unsed imports and variables

This cleanup is for the swift.common package

Change-Id: Ibe74d4f0ae0376395f620b9be24a52cb8a4a5d98

swift/common/bench.py

@@ -21,7 +21,7 @@ from contextlib import contextmanager
 import eventlet.pools
 from eventlet.green.httplib import CannotSendRequest
 
-from swift.common.utils import TRUE_VALUES, urlparse
+from swift.common.utils import TRUE_VALUES
 from swift.common import client
 from swift.common import direct_client
 
@@ -105,7 +105,6 @@ class Bench(object):
 
     def run(self):
         pool = eventlet.GreenPool(self.concurrency)
-        events = []
         self.beginbeat = self.heartbeat = time.time()
         self.heartbeat -= 13    # just to get the first report quicker
         self.failures = 0

swift/common/client.py

@@ -17,10 +17,7 @@
 Cloud Files client library used internally
 """
 import socket
-from cStringIO import StringIO
-from re import compile, DOTALL
-from tokenize import generate_tokens, STRING, NAME, OP
-from urllib import quote as _quote, unquote
+from urllib import quote as _quote
 from urlparse import urlparse, urlunparse
 
 try:

swift/common/db.py

@@ -26,7 +26,6 @@ import sys
 import time
 import cPickle as pickle
 import errno
-from random import randint
 from tempfile import mkstemp
 
 from eventlet import sleep, Timeout
@@ -311,7 +310,7 @@ class DatabaseBroker(object):
             yield conn
             conn.rollback()
             self.conn = conn
-        except sqlite3.DatabaseError, err:
+        except sqlite3.DatabaseError:
             try:
                 conn.close()
             except:

swift/common/db_replicator.py

@@ -14,7 +14,6 @@
 # limitations under the License.
 
 from __future__ import with_statement
-import sys
 import os
 import random
 import math
@@ -31,7 +30,7 @@ from webob.exc import HTTPNotFound, HTTPNoContent, HTTPAccepted, \
     HTTPInsufficientStorage, HTTPBadRequest
 
 from swift.common.utils import get_logger, whataremyips, storage_directory, \
-    renamer, mkdirs, lock_parent_directory, unlink_older_than, LoggerFileObject
+    renamer, mkdirs, lock_parent_directory, unlink_older_than
 from swift.common import ring
 from swift.common.bufferedhttp import BufferedHTTPConnection
 from swift.common.exceptions import DriveNotMounted, ConnectionTimeout

swift/common/direct_client.py

@@ -21,7 +21,7 @@ through the proxy.
 import socket
 from httplib import HTTPException
 from time import time
-from urllib import quote as _quote, unquote
+from urllib import quote as _quote
 
 from eventlet import sleep, Timeout
 

swift/common/manager.py

@@ -19,7 +19,6 @@ import errno
 import os
 import resource
 import signal
-import sys
 import time
 import subprocess
 import re

swift/common/middleware/tempauth.py

@@ -98,7 +98,6 @@ class TempAuth(object):
                     url += ip
                     url += ':' + conf.get('bind_port', '8080') + '/v1/' + \
                            self.reseller_prefix + conf_key.split('_')[1]
-                groups = values
                 self.users[conf_key.split('_', 1)[1].replace('_', ':')] = {
                     'key': key, 'url': url, 'groups': values}
 

swift/common/middleware/tempurl.py

@@ -253,7 +253,7 @@ class TempURL(object):
                         already = True
                         break
                 if not already:
-                    headers.append(('Content-Disposition', 
+                    headers.append(('Content-Disposition',
                         'attachment; filename=%s' %
                             (quote(basename(env['PATH_INFO'])))))
             return start_response(status, headers, exc_info)

swift/common/utils.py

@@ -19,17 +19,14 @@ import errno
 import fcntl
 import os
 import pwd
-import signal
 import sys
 import time
-import mimetools
 from hashlib import md5
 from random import shuffle
 from urllib import quote
 from contextlib import contextmanager
 import ctypes
 import ctypes.util
-import struct
 from ConfigParser import ConfigParser, NoSectionError, NoOptionError, \
     RawConfigParser
 from optparse import OptionParser
@@ -43,8 +40,8 @@ import glob
 from urlparse import urlparse as stdlib_urlparse, ParseResult
 
 import eventlet
-from eventlet import greenio, GreenPool, sleep, Timeout, listen
-from eventlet.green import socket, subprocess, ssl, thread, threading
+from eventlet import GreenPool, sleep
+from eventlet.green import socket, threading
 import netifaces
 
 from swift.common.exceptions import LockTimeout, MessageTimeout

swift/common/wsgi.py

@@ -18,7 +18,6 @@
 import errno
 import os
 import signal
-import sys
 import time
 import mimetools