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GeezerVison is showing github.com — gh-93103: Enhance PyConfig.parser_debug documentation by vstinner · Pull Request #93186 · python/cpython

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@vstinner

@vstinner vstinner commented May 24, 2022

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Document that -d option and PYTHONDEBUG env var requires a debug
build of Python. Also mention them in the debug build documentation.

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@vstinner
gh-93103: Enhance PyConfig.parser_debug documentation
fa5421e 
Document that -d option and PYTHONDEBUG env var requires a debug
build of Python. Also mention them in the debug build documentation.
@vstinner vstinner added the skip news label May 24, 2022
@bedevere-bot bedevere-bot added docs Documentation in the Doc dir awaiting core review labels May 24, 2022
@vstinner vstinner mentioned this pull request May 24, 2022
gh-93103: Parser uses PyConfig.parser_debug instead of Py_DebugFlag #93106
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vstinner merged commit c7667a2 into python:main May 24, 2022
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vstinner deleted the parser_debug_doc branch May 24, 2022 21:23
@bedevere-bot bedevere-bot removed the awaiting core review label May 24, 2022
@malemburg

malemburg commented May 24, 2022

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@vstinner: You may not be aware, but the Py_DebugFlag is also being used by Python extensions to e.g. produce debug log output. While the docs are fine for CPython itself, they are not necessarily correct for other uses.
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@malemburg

malemburg commented May 24, 2022

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The same is true for Py_VerboseFlag and Py_OptimizeFlag as well.
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@vstinner

vstinner commented May 24, 2022

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My plan is to deprecate Py_DebugFlag to replace it with PyConfig.parser_debug. In Python 2.7, it was already documented as being related to debugging the Python parser. It's also documented at: https://devguide.python.org/parser/#verbose-mode
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@vstinner @malemburg @bedevere-bot
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