Remove unnecessary imports

supervisor/tests/test_http.py

@@ -1,6 +1,7 @@
 import base64
 import os
 import socket
+import stat
 import sys
 import tempfile
 import unittest
@@ -56,9 +57,6 @@ class LogtailHandlerTests(HandlerTests, unittest.TestCase):
         self.assertEqual(request._error, 410)
 
     def test_handle_request(self):
-        import tempfile
-        import os
-        import stat
         f = tempfile.NamedTemporaryFile()
         t = f.name
         options = DummyOptions()
@@ -97,9 +95,6 @@ class MainLogTailHandlerTests(HandlerTests, unittest.TestCase):
 
     def test_handle_request(self):
         supervisor = DummySupervisor()
-        import tempfile
-        import os
-        import stat
         f = tempfile.NamedTemporaryFile()
         t = f.name
         supervisor.options.logfile = t
@@ -125,7 +120,6 @@ class TailFProducerTests(unittest.TestCase):
 
     def test_handle_more(self):
         request = DummyRequest('/logtail/foo', None, None, None)
-        import tempfile
         from supervisor import http
         f = tempfile.NamedTemporaryFile()
         f.write('a' * 80)

supervisor/tests/test_options.py

@@ -28,7 +28,6 @@ from supervisor.tests.base import lstrip
 class OptionTests(unittest.TestCase):
 
     def _makeOptions(self, read_error=False):
-        from cStringIO import StringIO
         from supervisor.options import Options
         from supervisor.datatypes import integer
 

supervisor/tests/test_process.py

@@ -209,7 +209,6 @@ class SubprocessTests(unittest.TestCase):
 
     def test_spawn_fail_make_pipes_emfile(self):
         options = DummyOptions()
-        import errno
         options.make_pipes_error = errno.EMFILE
         config = DummyPConfig(options, 'good', '/good/filename')
         instance = self._makeOne(config)
@@ -259,7 +258,6 @@ class SubprocessTests(unittest.TestCase):
 
     def test_spawn_fork_fail_eagain(self):
         options = DummyOptions()
-        import errno
         options.fork_error = errno.EAGAIN
         config = DummyPConfig(options, 'good', '/good/filename')
         instance = self._makeOne(config)
@@ -606,7 +604,6 @@ class SubprocessTests(unittest.TestCase):
             self.assertTrue(instance.pid)
             self.assertEqual(instance.pid, result)
             origpid = instance.pid
-            import errno
             while 1:
                 try:
                     data = os.popen('ps').read()
@@ -1613,7 +1610,6 @@ class EventListenerPoolTests(ProcessGroupBaseTests):
         gconfig = DummyPGroupConfig(options, pconfigs=[pconfig1])
         pool = self._makeOne(gconfig)
         process1 = pool.processes['process1']
-        import errno
         process1.write_error = errno.EPIPE
         process1.listener_state = EventListenerStates.READY
         event = DummyEvent()