Python FTP server library provides a high-level portable interface to easily write very efficient, scalable and asynchronous FTP servers with Python.
What's new ==========
**Enhancements**
* #621: use black formatter. * #626: use argparse instead of deprecated optparse. * #628: use pytest instead of unittest. * #632: add ability to run tests in parallel with `make test-parallel`.
**Bug fixes**
* #627: PermissionError may occur on Windows when binding ports from a pre-configured PASV range.