rm 'from __future__ import with_statement'

not needed since 2.5 is not supported anymore.

examples/dns_mass_resolve.py

@@ -10,7 +10,6 @@ variable. To enable threading resolver:
     GEVENT_RESOLVER=thread python dns_mass_resolve.py
 """
 from __future__ import print_function
-from __future__ import with_statement
 import gevent
 from gevent import socket
 from gevent.pool import Pool

examples/psycopg2_pool.py

 from __future__ import print_function
-from __future__ import with_statement
 import sys
 import contextlib
 

gevent/fileobject.py

-from __future__ import absolute_import, with_statement
+from __future__ import absolute_import
 import sys
 import os
 from gevent.hub import get_hub

gevent/threadpool.py

 # Copyright (c) 2012 Denis Bilenko. See LICENSE for details.
-from __future__ import with_statement, absolute_import
+from __future__ import absolute_import
 import sys
 import os
 from gevent.hub import get_hub, getcurrent, sleep, integer_types

greentest/greentest.py

@@ -20,7 +20,6 @@
 # THE SOFTWARE.
 
 # package is named greentest, not test, so it won't be confused with test in stdlib
-from __future__ import with_statement
 import sys
 import unittest
 from unittest import TestCase as BaseTestCase

greentest/lock_tests.py

 """
 Various tests for synchronization primitives.
 """
-from __future__ import with_statement
-
 import sys
 import time
 from thread import start_new_thread, get_ident

greentest/test__api_timeout.py

@@ -19,7 +19,6 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 # THE SOFTWARE.
 
-from __future__ import with_statement
 import sys
 import greentest
 import weakref

greentest/test__core_async.py

 from __future__ import print_function
-from __future__ import with_statement
 import gevent
 import gevent.core
 import time

greentest/test__core_stat.py

 from __future__ import print_function
-from __future__ import with_statement
 import gevent
 import gevent.core
 import os

greentest/test__example_echoserver.py

-from __future__ import with_statement
 from gevent.socket import create_connection, timeout
 from unittest import main
 import gevent

greentest/test__example_portforwarder.py

 from __future__ import print_function
-from __future__ import with_statement
 from gevent import monkey; monkey.patch_all()
 import sys
 import socket

greentest/test__pool.py

-from __future__ import with_statement
 from time import time
 import gevent
 from gevent import pool

greentest/test__queue.py

-from __future__ import with_statement
 from greentest import TestCase, main, GenericGetTestCase
 import gevent
 from gevent.hub import get_hub

greentest/test__sleep0.py

-from __future__ import with_statement
 import gevent
 from util import alarm
 

greentest/test__socket_dns.py

 #!/usr/bin/python
 # -*- coding: utf-8 -*-
-from __future__ import with_statement
 import re
 import greentest
 import socket

greentest/test__socket_dns6.py

 #!/usr/bin/python
 # -*- coding: utf-8 -*-
-from __future__ import with_statement
 import greentest
 import socket
 from test__socket_dns import TestCase, add

greentest/test__threading_vs_settrace.py

 from __future__ import print_function
-from __future__ import with_statement
-
 import sys
 import subprocess
 import unittest

greentest/test__threadpool.py

-from __future__ import with_statement
 import sys
 from time import time, sleep
 import random

greentest/test_hub_join_timeout.py

-from __future__ import with_statement
 from contextlib import contextmanager
 import gevent
 from gevent.event import Event

greentest/test_queue.py

 # Some simple queue module tests, plus some failure conditions
 # to ensure the Queue locks remain stable.
-#from __future__ import with_statement
 from gevent import monkey; monkey.patch_all()
 from gevent import queue as Queue
 import threading

greentest/test_threading_2.py

 # testing gevent's Event, Lock, RLock, Semaphore, BoundedSemaphore with standard test_threading
 from __future__ import print_function
-from __future__ import with_statement
 from six import xrange
 
 setup_ = '''from gevent import monkey; monkey.patch_all()

greentest/util.py

-from __future__ import with_statement
 import sys
 import os
 import re