I was editing a question today and discovered an accidental mis-tagging by the user:
The original tag was for net-sftp, a tag which exists for the Ruby Net::SFTP module from the Net:SSH library.
What the OP was after was the non-existent tag for the pure Python implementation, also conveniently named Net::SFTP, which according to this wiki is a
full SFTP client written in Perl with lots of bells and whistles.
Oh dear, a search for
[net-sftp] -[ruby] -[ruby-on-rails] leads to more questions mis-taggingly using the Ruby one, but also at least one question in search of the PHP implementation of a Net::SFTP library.
Obviously, what this world needs more than another intervention in the Middle East is more tags - but how to taxonomize all these identically named tools?