GH-133789: Fix unpickling of pathlib objects pickled in Python 3.13 #133831
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…3.13 In Python 3.13 (but not 3.12 or 3.14), pathlib classes are defined in `pathlib._local` rather than `pathlib`. In hindsight this was a mistake, but it was difficult to predict how the abstract/local split would pan out. In this patch we re-introduce `pathlib._local` as a stub module that re-exports the classes from `pathlib`. This allows path objects pickled in 3.13 to be unpicked in 3.14+
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would this also add support for 3.12 to be able to unpickle path objects pickled in 3.13? |
I'm afraid not. Generally we don't support that sort of forward-compatibility with pickling |
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In Python 3.13 (but not 3.12 or 3.14), pathlib classes are defined in
pathlib._localrather thanpathlib. In hindsight this was a mistake, but it was difficult to predict how the abstract/local split would pan out.In this patch we re-introduce
pathlib._localas a stub module that re-exports the classes frompathlib. This allows path objects pickled in 3.13 to be unpicked in 3.14+