[issue32247] shutil-copytree: Create dst folder only if it doesn't exist

[Thomas Kluyver]

Thomas Kluyver <thomas at kluyver.me.uk> added the comment:

This is documented:

>  The destination directory, named by dst, must not already exist

https://docs.python.org/3/library/shutil.html#shutil.copytree

I guess that avoids complications that might arise from merging a directory.

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nosy: +takluyver

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