fix(http-client-python): escape leading @ in docstring field targets - #11622
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Yuchao Yan (msyyc) merged 4 commits intoAug 13, 2026
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Wire names such as @search.facets are emitted as the target of Sphinx info fields (:ivar/:vartype/:keyword/:paramtype/:param/:type). A leading @ is interpreted by Sphinx and breaks the rendered docstring, so escape it via a shared escape_sphinx_field_name helper applied across model, TypedDict, operation, and client docstring generation. The raw @ is preserved everywhere else (e.g. TypedDict keys, wire names). Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: 4b38539c-8877-4fdc-8b9d-bc400a50d325
Libba Lawrence (l0lawrence)
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catalinaperalta,
iscai-msft,
Kashif Khan (kashifkhan),
Laurent Mazuel (lmazuel),
Mark Cowlishaw (markcowl),
Yuchao Yan (msyyc),
Chenjie Shi (tadelesh),
Timothee Guerin (timotheeguerin) and
Jeff Fisher (xirzec)
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August 11, 2026 21:09
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… fields A leading @ in a Sphinx info-field target is fine in stock autodoc, but escaping it as \@ (the previous approach) emits an invalid Python escape sequence into the generated SDK (SyntaxWarning / SyntaxError under -W error). Instead wrap names containing @ in double backticks (inline literal), which renders correctly across :ivar/:vartype/:keyword/:paramtype/:param/:type with no backslash and no invalid escape. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: 4b38539c-8877-4fdc-8b9d-bc400a50d325
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…atter An earlier accidental black run at the wrong line length split two function signatures in model_serializer.py across multiple lines. That moved the '# pylint: disable=too-many-return-statements' comment off the def line, breaking the suppression (R0911 + useless-suppression). Restore both signatures to match main. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: 4b38539c-8877-4fdc-8b9d-bc400a50d325
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Yuchao Yan (msyyc)
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Problem
When a property/parameter wire name starts with
@(e.g.@search.facets), the generated Python docstrings emit it directly as the target of a Sphinx info field:Sphinx/docutils interprets the leading
@, which breaks the rendered docstring.Fix
Added a shared helper
escape_sphinx_field_name(inmodels/utils.py) that escapes@→\@, and applied it at every site that emits a name as a docstring info-field target:model_serializer._documentation_string(:ivar/:vartype,:keyword/:paramtype)builder_serializer.param_description(:param/:type,:keyword/:paramtype)client_serializer.property_descriptions(client:ivaroperation groups, client-level params, and config params)Scope note
The escaping is applied only where the name lands inside a docstring, because
\@is an RST/Sphinx escape — not a Python one. The raw@is preserved everywhere else (TypedDict keys,rest_field(name=...), wire serialization), where it's the correct on-the-wire value. In practice@only ever reaches a docstring via the TypedDict types file (the only path that renders the rawwire_name); the other call sites use the sanitizedclient_nameand are covered defensively / future-proofed.Tests
Added
test_models_mode_typeddict_docstring_escapes_at_sign, which asserts both that the docstring field target is escaped (:vartype \@search.facets:) and that the generated TypedDict key keeps the raw"@search.facets":.