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authorJohn Belmonte <john@neggie.net>2023-05-01 19:47:14 (GMT)
committerGitHub <noreply@github.com>2023-05-01 19:47:14 (GMT)
commit3ed8c882902a6982fd67e898a5b8a2d619fb5ddf (patch)
tree1ff3877549a81494f84a6ca36b0f47dd52768c75 /Lib
parent5078eedc5b18f0d208af6e30f60b33419132d1b6 (diff)
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gh-104018: disallow "z" format specifier in %-format of byte strings (GH-104033)
PEP-0682 specified that %-formatting would not support the "z" specifier, but it was unintentionally allowed for bytes. This PR makes use of the "z" flag an error for %-formatting in a bytestring. Issue: #104018 --------- Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Diffstat (limited to 'Lib')
-rw-r--r--Lib/test/test_format.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/Lib/test/test_format.py b/Lib/test/test_format.py
index 69b0d5f..6fa49db 100644
--- a/Lib/test/test_format.py
+++ b/Lib/test/test_format.py
@@ -619,6 +619,8 @@ class FormatTest(unittest.TestCase):
error_msg = re.escape("unsupported format character 'z'")
with self.assertRaisesRegex(ValueError, error_msg):
"%z.1f" % 0 # not allowed in old style string interpolation
+ with self.assertRaisesRegex(ValueError, error_msg):
+ b"%z.1f" % 0
if __name__ == "__main__":