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[3.15] gh-151949: Fix Sphinx reference warnings in Doc/library/lzma.rst (GH-153878) - #154485
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…st` (pythonGH-153878) The lzma module constants (FORMAT_*, CHECK_*, PRESET_*, FILTER_*, MODE_* and MF_*) were referenced with the :const: role throughout the module documentation but were never defined as reference targets, producing "reference target not found" warnings under nitpicky mode. Document these public constants with .. data:: directives, following the convention used by the signal, socket and ssl modules, so the existing references resolve. The now-redundant inline descriptions of the format and check constants are condensed into linked references. (cherry picked from commit 1530b38) Co-authored-by: Vyron Vasileiadis <hi@fedonman.com>
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July 22, 2026 12:50
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This is a manual backport of #153878 to 3.15.
The automated backport (#154127) fails the docs build. That PR removes Doc/library/lzma.rst from the nitpick ignore list, but on 3.15 six of the BCJ filter references in that file are still unresolved and now show up as warnings: FILTER_X86, FILTER_IA64, FILTER_ARM, FILTER_ARMTHUMB, FILTER_POWERPC and FILTER_SPARC.
On main those names are written with a leading !, which tells Sphinx to render them as plain text without looking for a reference target. That prefix was added by the change that introduced the ARM64 and RISCV filters (GH-115989), which was never backported, so the release branches still carry the plain references.
This backport adds the same ! prefix to those six lines, so the file builds cleanly under nitpicky mode and renders the same way it does on main. I checked with a nitpicky docs build that lzma.rst produces no warnings.
Supersedes #154127.