[pull] main from python:main #533
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…exclusive groups in argparse (GH-142333)
…d `_PyEvalFramePushAndInit_Ex` (#142192) Co-authored-by: Kir Chou <note351@hotmail.com>
Co-authored-by: Pablo Galindo Salgado <pablogsal@gmail.com>
…cancelled asyncio task running (#141696) Co-authored-by: Kumar Aditya <kumaraditya@python.org>
Co-authored-by: Pablo Galindo Salgado <pablogsal@gmail.com>
…41624) Enhanced the _find_lineno method in doctest to correctly identify and report line numbers for doctests defined in __test__ dictionaries when formatted as triple-quoted strings. Finds a non-blank line in the test string and matches it in the source file, verifying subsequent lines also match to handle duplicate lines. Previously, doctest would report "line None" for __test__ dictionary strings, making it difficult to debug failing tests. Co-authored-by: Jurjen N.E. Bos <jneb@users.sourceforge.net> Co-authored-by: R. David Murray <rdmurray@bitdance.com>
…ra newline (#142008) RDM: This fixes a subtle folding error that showed up when a token exactly filled a line and was followed by whitespace and a token with no folding whitespace that was longer than a line. In this particular circumstance the whitespace after the first token got pushed on to the next line, and then stolen to go in front of the next unfoldable token...leaving a completely empty line in the line buffer. That line got turned in to a newline, which is RFC illegal, and the newish security check caught it. The fix is to just delete that empty line from the buffer. Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
The keyword typo suggestion mechanism in traceback would incorrectly suggest replacements when the extracted source code was merely incomplete rather than containing an actual typo. For example, when a missing comma caused a syntax error, the system would suggest replacing 'print' with 'not' because the incomplete code snippet happened to pass validation. The fix adds a validation step that first checks whether the original extracted code raises a SyntaxError. If the code compiles successfully or is simply incomplete (compile_command returns None), the function returns early since there is no way to verify that a keyword replacement would actually fix the problem.
Extend defect handling via policy to a couple of missed defects. --------- Co-authored-by: Martin Panter <vadmium@users.noreply.github.com> Co-authored-by: Ivo Bellin Salarin <ivo@nilleb.com>
… reads (#142137) This PR implements frame caching in the RemoteUnwinder class to significantly reduce memory reads when profiling remote processes with deep call stacks. When cache_frames=True, the unwinder stores the frame chain from each sample and reuses unchanged portions in subsequent samples. Since most profiling samples capture similar call stacks (especially the parent frames), this optimization avoids repeatedly reading the same frame data from the target process. The implementation adds a last_profiled_frame field to the thread state that tracks where the previous sample stopped. On the next sample, if the current frame chain reaches this marker, the cached frames from that point onward are reused instead of being re-read from remote memory. The sampling profiler now enables frame caching by default.
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