Less python 2 support

What's Changed

• Stop supporting Python 2.x by @elfosardo in #116
• Use correct python version for tox based on env by @elfosardo in #118
• No need to import print_function anymore by @elfosardo in #119
• Skip network drive grouping when network drives not detected by @jovial in #121
• Drop the dependency on netaddr by @dtantsur in #122
• Stop using six library by @elfosardo in #123

New Contributors

• @jovial made their first contribution in #121

Full Changelog: 0.23.0...0.24.0