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-rw-r--r--testtools/twistedsupport/_runtest.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/testtools/twistedsupport/_runtest.py b/testtools/twistedsupport/_runtest.py
index 85ab051..c8860e9 100644
--- a/testtools/twistedsupport/_runtest.py
+++ b/testtools/twistedsupport/_runtest.py
@@ -506,7 +506,7 @@ def assert_fails_with(d, *exc_types, **kwargs):
def got_success(result):
raise failureException(
- "{} not raised ({!r} returned)".format(expected_names, result))
+ f"{expected_names} not raised ({result!r} returned)")
def got_failure(failure):
if failure.check(*exc_types):
@@ -533,4 +533,4 @@ class UncleanReactorError(Exception):
ret = str(junk)
else:
ret = repr(junk)
- return ' {}\n'.format(ret)
+ return f' {ret}\n'