support for the Pathlib

[ftputiluser]

It will be very useful to have a support for the Pathlib acts like input parameters for methods. E.g. you can do something like ftp_host.chdir(Path("/my/dir/"))

[schwa]

Generally, this sounds like a sensible idea. However, according to the documentation at ​https://docs.python.org/3/library/pathlib.html , Path(...) instantiates a filesystem path for the operating system the Python process runs on.

A path object to be used as an FTP remote path should probably be an FTPPath (or something with a similar name). I'm not sure yet how to implement this. From a pure implementation perspective, an FTPPath could be aliased to a PurePosixPath, but having isinstance(FTPPath(...), PurePosixPath) evaluate to True would be confusing. Although most FTP servers will run on a Posix system, an FTPPath shouldn't assume this. Also, some PurePosixPath operations may not make sense for a remote filesystem.