Handle renaming of "thread" to "_thread" in PY3

gevent/thread.py

@@ -22,6 +22,7 @@ if sys.version_info[0] <= 2:
     import thread as __thread__
 else:
     import _thread as __thread__
+    __target__ = '_thread'
 error = __thread__.error
 from gevent.hub import getcurrent, GreenletExit
 from gevent.greenlet import Greenlet

greentest/test__core_async.py

@@ -2,7 +2,10 @@ from __future__ import with_statement
 import gevent
 import gevent.core
 import time
-import thread
+try:
+    import thread
+except ImportError:
+    import _thread as thread
 
 
 hub = gevent.get_hub()

greentest/test__monkey.py

@@ -4,7 +4,10 @@ monkey.patch_all()
 import time
 assert 'built-in' not in repr(time.sleep), repr(time.sleep)
 
-import thread
+try:
+    import thread
+except ImportError:
+    import _thread as thread
 import threading
 assert 'built-in' not in repr(thread.start_new_thread), repr(thread.start_new_thread)
 assert 'built-in' not in repr(threading._start_new_thread), repr(threading._start_new_thread)

greentest/test_threading_2.py

@@ -37,7 +37,10 @@ import random
 import re
 import sys
 import threading
-import thread
+try:
+    import thread
+except ImportError:
+    import _thread as thread
 import time
 import unittest
 import weakref