From 5b45b5851c5a66f0d04e3fbcb3bf05f4d7da7910 Mon Sep 17 00:00:00 2001
From: David Wilson <dw@botanicus.net>
Date: Sun, 20 Jan 2019 13:00:20 +0000
Subject: [PATCH] issue #408: use compatible method to get thread ID.

---
 mitogen/core.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/mitogen/core.py b/mitogen/core.py
index 10336771..9bc11277 100644
--- a/mitogen/core.py
+++ b/mitogen/core.py
@@ -57,6 +57,11 @@ import imp
 # Absolute imports for <2.5.
 select = __import__('select')
 
+try:
+    import thread
+except ImportError:
+    import threading as thread
+
 try:
     import cPickle as pickle
 except ImportError:
@@ -1917,7 +1922,7 @@ class Latch(object):
         This disambiguates legitimate wake-ups, accidental writes to the FD,
         and buggy internal FD sharing.
         """
-        ident = threading.currentThread().ident
+        ident = thread.get_ident()
         return b(u'%010d-%016x-%016x' % (os.getpid(), int(id(self)), ident))
 
     COOKIE_SIZE = len(_make_cookie(None))