Reimplement Literal on Python <=3.10.0#148
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Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
JelleZijlstra
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Apr 20, 2023
This was referenced May 27, 2023
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Fixes #147.
No code changes are required -- the
typing_extensionsreimplementation ofLiteralhas never suffered from the same bug that was fixed in python/cpython#29334, because we don't cacheLiteralsubscripts in the same way that CPython does. (I think if we wanted to do so, it might require us to reimplement@typing._tp_cacheas it exists on CPythonmain, since the signature of_tp_cachechanged between bugfix versions at some point.) As such, all we need to do is reimplementLiteralon <=3.10.0 instead of <=3.9.0.Cc. @dfremont :)