Zipp

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44: ``zipp.Path.open()`` now supports a compatible signature
as ``pathlib.Path.open()``, accepting text (default) or binary
modes and soliciting keyword parameters passed through to
``io.TextIOWrapper`` (encoding, newline, etc). The stream is
opened in text-mode by default now. ``open`` no
longer accepts ``pwd`` as a positional argument and does not
accept the ``force_zip64`` parameter at all. This change is
a backward-incompatible change for that single function.

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43: Restored performance of implicit dir computation.

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32: For read-only zip files, complexity of ``.exists`` and
``joinpath`` is now constant time instead of ``O(n)``, preventing
quadratic time in common use-cases and rendering large
zip files unusable for Path. Big thanks to Benjy Weinberger
for the bug report and contributed fix (33).

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Re-release of 0.6 to correspond with release as found in
Python 3.8.

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12: When adding implicit dirs, ensure that ancestral directories
are added and that duplicates are excluded.

The library now relies on
`more_itertools <https://pypi.org/project/more_itertools>`_.

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7: Parent of a directory now actually returns the parent.