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-rw-r--r--test/functional/test_framework/util.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/test/functional/test_framework/util.py b/test/functional/test_framework/util.py
index 190301b215..0583b42388 100644
--- a/test/functional/test_framework/util.py
+++ b/test/functional/test_framework/util.py
@@ -216,7 +216,7 @@ def wait_until(predicate, *, attempts=float('inf'), timeout=float('inf'), lock=N
time.sleep(0.05)
# Print the cause of the timeout
- predicate_source = inspect.getsourcelines(predicate)
+ predicate_source = "''''\n" + inspect.getsource(predicate) + "'''"
logger.error("wait_until() failed. Predicate: {}".format(predicate_source))
if attempt >= attempts:
raise AssertionError("Predicate {} not true after {} attempts".format(predicate_source, attempts))