[issue43285] ftplib should not use the host from the PASV response

[Gregory P. Smith]

Gregory P. Smith <greg at krypto.org> added the comment:

A What's New entry is a good idea.  I'll make one and add it to those backport PRs.  (reopened to remind me of that)

ftplib docs... I don't actually want to document the attribute that people can set for the old behavior beyond the notes in NEWS or What's New.  It is something I anticipate nobody in the world ever actually setting so I'd rather not imply that anyone even should by giving it more prominent doc space.

Other things that have fixed this repeated bug in their program that supports ftp over the years have not added an opt-out as far as I could tell in my quick searching.

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status: closed -> open

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<https://bugs.python.org/issue43285>
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