Raymond Hettinger <[email protected]> added the comment:
In difflib, there's an example where it would be easy to run performance tests.
match tag:
case 'replace':
g = self._fancy_replace(a, alo, ahi, b, blo, bhi)
case 'delete':
g = self._dump('-', a, alo, ahi)
case 'insert':
g = self._dump('+', b, blo, bhi)
case 'equal':
g = self._dump(' ', a, alo, ahi)
case _:
raise ValueError('unknown tag %r' % (tag,))
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<https://bugs.python.org/issue44276>
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