Error2 reports

Fix `ValueError`

in Black

Related Issues

Real GitHub issues where developers encountered this error:

Invalid BLACK_NUM_WORKERS value can produce a raw ValueError tracebackJul 1, 2026

Black Formatter fails with `ValueError` when workspace uses UNC path and file uses mapped driveMay 31, 2026

Timeline

First reported:May 31, 2026

Last reported:Jul 1, 2026

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