If you try autocompletion on this snippet, just try to insert an extra " in the printf(f"wh line, you'll see that jedi is returning bad results, looks like jedi doesn't fully support f-strings yet:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
def main():
"""Main function."""
print(f"wh)
if __name__ == "__main__":
main()
2019-02-02 08:47:03,905 [INFO @ ncm2_jedi.py:on_complete:54] 15064 - context [{'filepath': '/home/viniarck/repos/algos-structures-python/f_strs.py', 'typed': ' print(f"wh', 'scope_match': 'python', 'startccol': 13, 'mode': 'i', 'word_pattern': '(-?\\d*\\.\\d\\w*)|([^\\`\\~\\!\\@\\#\\$\\%\\^\\&\\*\\(\\)\\-\\=\\+\\[\\{\\]\\}\\\\\\|\\;\\:\\\'\\"\\,\\.\\<\\>\\/\\?\\s]+)', 'time': 1549104423.904316, 'lnum': 7, 'bufnr': 2, 'changedtick': 157, 'manual': False, 'base': 'wh', 'ccol': 15, 'filetype': 'python', 'curpos': [0, 7, 15, 0, 15], 'tick': [[0, 7, 15], 0], 'early_cache': False, 'context_id': 119, 'scope': 'python', 'matcher': {'name': 'abbrfuzzy'}, 'source': {'subscope_enable': 1, 'early_cache': 0, 'name': 'jedi', 'scope': ['python'], 'mark': 'py', 'on_warmup': 'ncm2_jedi#on_warmup', 'ready': 1, 'enable': 1, 'auto_popup': 1, 'priority': 9, 'complete_pattern': ['^\\s*(import|from).*\\s', '\\.', '\\(\\s?', ',\\s?'], 'on_complete': 'ncm2_jedi#on_complete'}, 'scope_level': 1, 'bcol': 15, 'match_end': 12}]
2019-02-02 08:47:03,906 [WARNING @ session.py:handler:221] 15064 - error caught while processing notification 'b'on_complete' [{b'filepath': b'/home/viniarck/repos/algos-structures-python/f_strs.py', b'typed': b' print(f"wh', b'scope_match': b'python', b'startccol': 13, b'mode': b'i', b'word_pattern': b'(-?\\d*\\.\\d\\w*)|([^\\`\\~\\!\\@\\#\\$\\%\\^\\&\\*\\(\\)\\-\\=\\+\\[\\{\\]\\}\\\\\\|\\;\\:\\\'\\"\\,\\.\\<\\>\\/\\?\\s]+)', b'time': 1549104423.904316, b'lnum': 7, b'bufnr': 2, b'changedtick': 157, b'manual': False, b'base': b'wh', b'ccol': 15, b'filetype': b'python', b'curpos': [0, 7, 15, 0, 15], b'tick': [[0, 7, 15], 0], b'early_cache': False, b'context_id': 119, b'scope': b'python', b'matcher': {b'name': b'abbrfuzzy'}, b'source': {b'subscope_enable': 1, b'early_cache': 0, b'name': b'jedi', b'scope': [b'python'], b'mark': b'py', b'on_warmup': b'ncm2_jedi#on_warmup', b'ready': 1, b'enable': 1, b'auto_popup': 1, b'priority': 9, b'complete_pattern': [b'^\\s*(import|from).*\\s', b'\\.', b'\\(\\s?', b',\\s?'], b'on_complete': b'ncm2_jedi#on_complete'}, b'scope_level': 1, b'bcol': 15, b'match_end': 12}, [b'#!/usr/bin/env python', b'# -*- coding: utf-8 -*-', b'', b'', b'def main():', b' """Main function."""', b' print(f"wh)', b'', b'', b'if __name__ == "__main__":', b' main()']]': Traceback (most recent call last):
File "/usr/lib/python3.7/site-packages/pynvim/msgpack_rpc/session.py", line 217, in handler
self._notification_cb(name, args)
File "/usr/lib/python3.7/site-packages/pynvim/api/nvim.py", line 222, in filter_notification_cb
notification_cb(name, args)
File "/home/viniarck/.config/nvim/.cache/init.vim/.dein/pythonx/yarp.py", line 36, in on_notification
getattr(module_obj, method)(*args)
File "/home/viniarck/.dotfiles/roles/dotfiles/files/config/nvim/.cache/init.vim/.dein/pythonx/ncm2.py", line 203, in on_complete
on_complete_impl(context, *args)
File "/home/viniarck/.config/nvim/repos/github.com/ncm2/ncm2-jedi/pythonx/ncm2_jedi.py", line 88, in on_complete
completions = script.completions()
File "/home/viniarck/.local/lib/python3.7/site-packages/jedi/api/__init__.py", line 174, in completions
completions = completion.completions()
File "/home/viniarck/.local/lib/python3.7/site-packages/jedi/api/completion.py", line 98, in completions
completion_names = self._get_context_completions()
File "/home/viniarck/.local/lib/python3.7/site-packages/jedi/api/completion.py", line 126, in _get_context_completions
grammar, self._code_lines, self._module_node, self._position
File "/home/viniarck/.local/lib/python3.7/site-packages/jedi/api/helpers.py", line 130, in get_stack_at_position
raise SystemError("This really shouldn't happen. There's a bug in Jedi.")
SystemError: This really shouldn't happen. There's a bug in Jedi.
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