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[3.12] gh-111159: Fix doctest output comparison for exceptions with notes (GH-111160) (#111169)

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gh-111159: Fix `doctest` output comparison for exceptions with notes (GH-111160)
(cherry picked from commit fd60549c0a)

Co-authored-by: Nikita Sobolev <mail@sobolevn.me>
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Miss Islington (bot) 2023-10-21 20:39:34 +02:00 • committed by GitHub
parent 1ea93024d4
commit f6cde99bdb
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3 changed files with 159 additions and 1 deletions
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15
Lib/doctest.py
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@ -1376,7 +1376,20 @@ class DocTestRunner:
# The example raised an exception: check if it was expected.
else:
exc_msg = traceback.format_exception_only(*exception[:2])[-1]
formatted_ex = traceback.format_exception_only(*exception[:2])
if issubclass(exception[0], SyntaxError):
# SyntaxError / IndentationError is special:
# we don't care about the carets / suggestions / etc
# We only care about the error message and notes.
# They start with `SyntaxError:` (or any other class name)
exc_msg_index = next(
index
for index, line in enumerate(formatted_ex)
if line.startswith(f"{exception[0].__name__}:")
)
formatted_ex = formatted_ex[exc_msg_index:]
exc_msg = "".join(formatted_ex)
if not quiet:
got += _exception_traceback(exception)