Crash while parsing query part containing only a dash

[bengadbois]

$ beet ls Rusko - Fifteen Years of Hospital Records - Everday [Netsky VIP Mix]
Traceback (most recent call last):
  File "/usr/local/bin/beet", line 11, in <module>
    sys.exit(main())
  File "/usr/local/lib/python2.7/dist-packages/beets/ui/__init__.py", line 1140, in main
    _raw_main(args)
  File "/usr/local/lib/python2.7/dist-packages/beets/ui/__init__.py", line 1130, in _raw_main
    subcommand.func(lib, suboptions, subargs)
  File "/usr/local/lib/python2.7/dist-packages/beets/ui/commands.py", line 972, in list_func
    list_items(lib, decargs(args), opts.album)
  File "/usr/local/lib/python2.7/dist-packages/beets/ui/commands.py", line 967, in list_items
    for item in lib.items(query):
  File "/usr/local/lib/python2.7/dist-packages/beets/library.py", line 1256, in items
    return self._fetch(Item, query, sort or self.get_default_item_sort())
  File "/usr/local/lib/python2.7/dist-packages/beets/library.py", line 1221, in _fetch
    query, parsed_sort = parse_query_parts(query, model_cls)
  File "/usr/local/lib/python2.7/dist-packages/beets/library.py", line 1119, in parse_query_parts
    model_cls, non_path_parts, prefixes
  File "/usr/local/lib/python2.7/dist-packages/beets/dbcore/queryparse.py", line 198, in parse_sorted_query
    s = sort_from_strings(model_cls, sort_parts)
  File "/usr/local/lib/python2.7/dist-packages/beets/dbcore/queryparse.py", line 163, in sort_from_strings
    sort.add_sort(construct_sort_part(model_cls, part))
  File "/usr/local/lib/python2.7/dist-pbeets version 1.3.14
no plugins loadedackages/beets/dbcore/queryparse.py", line 136, in construct_sort_part
    assert field, "field is missing"
AssertionError: field is missing

beets version 1.3.14
no plugins loaded
Python 2.7.6

Ask if you need me to run other things to provide additional details; I'm not familiar with python or the beets implementation.

[sampsyo]

Thanks! The problem seems to be the dash. I can reproduce this with just:

$ beet ls -

Investigating.

[sampsyo]

Should be fixed now. Thanks again for reporting.