Comment 16 for bug 1171227

> Any idea how I can solve this? It works fine with regular chars.

International characters are very much regular chars :). We had plenty of bug reports about them before in UltiSnips, so it is a very good thing that you added tests for them now.

The problem here is that you are trying to format a bytes string with a unicode object. Something along these lines should work:

    _vim.command(as_unicode("let g:current_ulti_dict['{key}'] = '{val}'").format(key=snip.trigger, val=description))

This should help with this problem.

Also think about what happens here if val or the trigger contain a " or a '. A test case for this might be indicated as well.

> So when I define a snippet as above the dict would be {'testâ', "abc123"} but I don't know how to define a snippet with description on the test file.
The code that spilts this tuple is in test.py, line 281. you can define a snippet as
("trigger", "content", "description", "options"), but you can leave out descriptions and/or options.

Hope that helps.