Fix thread support check for Python 3

Daniel Li · Daniel Li · commit 95e1d1a8aa9e · 2019-05-21T11:56:36.000-04:00
Fixes python-ldap#289.
diff --git a/Lib/ldap/__init__.py b/Lib/ldap/__init__.py
@@ -54,11 +54,10 @@ def release(self):
 
 try:
   # Check if Python installation was build with thread support
-  import thread
+  import threading
 except ImportError:
   LDAPLockBaseClass = DummyLock
 else:
-  import threading
   LDAPLockBaseClass = threading.Lock
 
 
