[issue43377] _PyErr_Display should be available in the CPython-specific API

[Pablo Galindo Salgado]

Pablo Galindo Salgado <pablogsal at gmail.com> added the comment:

PyErr_Display is not exposed partially because is full of small details of the interpreter and we change it constantly without regard for backwards compatibility on purpose. Exposing it will restrict us a lot on how we display error messages or the arguments it may take, so I woulf prefer to not expose it.

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nosy: +pablogsal

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<https://bugs.python.org/issue43377>
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