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-rw-r--r--tests/thread/mutate_set.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/tests/thread/mutate_set.py b/tests/thread/mutate_set.py
index 2d9a3e0ce..7dcefa1d1 100644
--- a/tests/thread/mutate_set.py
+++ b/tests/thread/mutate_set.py
@@ -2,6 +2,7 @@
#
# MIT license; Copyright (c) 2016 Damien P. George on behalf of Pycom Ltd
+import time
import _thread
# the shared set
@@ -33,7 +34,7 @@ for i in range(n_thread):
# busy wait for threads to finish
while n_finished < n_thread:
- pass
+ time.sleep(0)
# check set has correct contents
print(sorted(se))