Better handling of hidden builtins #278
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Added a generalized algorithm to handle builtins exposed via the `types` module, but reporting `builtins` at introspection.
ax3l
reviewed
Jan 22, 2026
ax3l
reviewed
Jan 22, 2026
| return QualifiedName((Identifier("None"),)) | ||
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| hidden_builtin = self._hidden_builtins.get(typename) | ||
| if hidden_builtin is not None: |
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Do you want to add a few inline comments to make the logic easier to read (e.g., what you wrote in the PR description)?
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Test cases for this also need to be added. |
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Added a generalized algorithm to handle builtins exposed via the
typesmodule, but reportingbuiltinsat introspection.Why
Importing types, via pybind11 such as py::module::import("types").attr("MappingProxyType") currently yields an unresolved name "mappingproxy" in the generated .pyi stubs.
The reason for this is that the
MappingProxyType.__qualname__at runtime is "mappingproxy" and__module__is "builtins". However, the actual builtins module does not expose this as an importable attribute.There are a number of other "hidden" builtins that follow this pattern. They all seem to come from the types module. I also left room for overriding this behavior, as was done before for "function" and "builtin_function_or_method".