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-rw-r--r--Lib/multiprocessing/pool.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/multiprocessing/pool.py b/Lib/multiprocessing/pool.py
index e2b670d987..2a8fae1c6a 100644
--- a/Lib/multiprocessing/pool.py
+++ b/Lib/multiprocessing/pool.py
@@ -451,7 +451,7 @@ class Pool(object):
for w in pool:
if w.exitcode is None:
# worker has not yet exited
- debug('cleaning up worker %d' % w.pid)
+ debug('cleaning up worker %s' % w.pid)
w.join()
#