fix config: add deprecation warning for non-string value in string-typed ini option - #14811
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RonnyPfannschmidt merged 1 commit intoAug 25, 2026
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…ped ini option _getini_ini returns the value as-is for type="string", unlike _getini_toml which validates with isinstance(value, str). In [tool.pytest.ini_options], make_scalar keeps TOML arrays as lists, so a list value reaches _getini_ini and gets returned without warning. "int" and "float" types already have the guard. Add a PytestRemovedIn10Warning for non-str values in _getini_ini's string branch. The value is still returned for now; in pytest 10 this will raise TypeError, matching _getini_toml. Closes pytest-dev#14808
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Ran into this while comparing _getini_toml and _getini_ini. The former validates with isinstance(value, str) for type="string", but _getini_ini just returns the value as-is. In [tool.pytest.ini_options], make_scalar keeps TOML arrays as lists, so a list reaches _getini_ini and gets returned without any warning. "int" and "float" types in _getini_ini already have the guard. "string" is the only scalar type missing it.
As Ronny pointed out, this needs a deprecation path rather than raising immediately, since addini(type=None) normalizes to "string" and many plugins rely on the implicit default.
The fix adds a PytestRemovedIn10Warning when _getini_ini sees a non-str value on a string-typed option. The value is still returned for backward compatibility. In pytest 10 this will become a TypeError, matching the _getini_toml path.
Closes #14808