[issue35648] Add use_srcentry parameter to shutil.copytree()

[Giampaolo Rodola']

Giampaolo Rodola' <g.rodola at gmail.com> added the comment:

When user uses copy_function argument, the callback function should always receive path strings, both for consistency and for not breaking backward compatibility. This line:

    use_srcentry = copy_function is copy2 or copy_function is copy

...makes sure of that (only passes DirEntry instances around if copy_function is not specified by user).

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue35648>
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