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Xavier Thompson authored
Since PEP 625, sdist filenames replace . and - in the project name by _, such as e.g. zc.buildout==3.0.1 yielding zc_buildout-3.0.1.tar.gz. However, when looking up available dists in a package index, when an sdist with such a normalized filename is found, setuptools interprets the filename by replacing _ with - and uses that as the dist's name; e.g. zc_buildout-3.0.1.tar.gz yields zc-buildout. This causes lookups for the name with . (e.g.: zc.buildout) to fail. Workaround by also looking up the name with . replaced by _, and then fixing the names of found dists back to expected name.
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