`UnboundLocalError: cannot access local variable 'filename' where it is not associated with a value`

[jameswillett]

• vim or neovim?
  • [ ] vim
  • [x] neovim
• Output of vim --version or nvim --version:

  NVIM v0.9.5
  Build type: Release
  LuaJIT 2.1.1702233742

• Output of :echo has("python"): 0
• Output of :echo has("python3"): 1
• Output of :echo &pythondll(only vim, not neovim):
• Output of :echo &pythonthreedll(only vim, not neovim):
• Output of :py print(sys.version): 3.11.6 (main, Nov 14 2023, 09:36:21) [GCC 13.2.1 20230801]
• Output of :py3 print(sys.version): 3.11.6 (main, Nov 14 2023, 09:36:21) [GCC 13.2.1 20230801] (same as above)
• Output of :echo g:Lf_Debug_Cmd:
• Output of :echo g:Lf_FilesFromCache:
• Operating system:
  • [x] Linux
  • [ ] Mac OS X
  • [ ] Windows
  • [ ] Etc.
• Configurations related to LeaderF in vimrc:

  
  """
  " leaderf
  """

let g:Lf_WindowPosition = 'popup' let g:Lf_PreviewInPopup = 1 let g:Lf_CommandMap = {'': [], '': [''], '': [], '': ['']}

### Describe your question, feature request, or bug.

after updating today i have run into this error. this error only occurs currently on `master`; checking out to `v1.24` i do not have this issue
![Peek 2024-01-18 13-37](https://github.com/Yggdroot/LeaderF/assets/30274748/4d1836bb-c3be-4a6e-b699-16503b6b7d60)

Error detected while processing function leaderf#Any#start[4]..leaderf#LfPy[1]..provider#python3#Call: line 18: Error invoking 'python_execute' on channel 6 (python3-script-host): Traceback (most recent call last): File "", line 1, in File "/home/james/.vim/plugged/LeaderF/autoload/leaderf/python/leaderf/anyExpl.py", line 821, in start the_args.start(arguments, *args, kwargs) File "/home/james/.vim/plugged/LeaderF/autoload/leaderf/python/leaderf/anyExpl.py", line 753, in _default_action manager.startExplorer(win_pos[2:], *args, *kwargs) File "/home/james/.vim/plugged/LeaderF/autoload/leaderf/python/leaderf/fileExpl.py", line 827, in startExplorer super(FileExplManager, self).startExplorer(win_pos, args, kwargs) File "/home/james/.vim/plugged/LeaderF/autoload/leaderf/python/leaderf/manager.py", line 2805, in startExplorer self.input() File "/home/james/.vim/plugged/LeaderF/autoload/leaderf/python/leaderf/manager.py", line 62, in deco func(self, *args, kwargs) File "/home/james/.vim/plugged/LeaderF/autoload/leaderf/python/leaderf/manager.py", line 3035, in input self._search(cur_content) File "/home/james/.vim/plugged/LeaderF/autoload/leaderf/python/leaderf/manager.py", line 1542, in _search self._previewResult(False) File "/home/james/.vim/plugged/LeaderF/autoload/leaderf/python/leaderf/manager.py", line 438, in _previewResult self._previewInPopup(line, self._getInstance().buffer, line_num) File "/home/james/.vim/plugged/LeaderF/autoload/leaderf/python/leaderf/devicons.py", line 417, in deco return func(*args, *kwargs) ^^^^^^^^^^^^^^^^^^^^^ File "/home/james/.vim/plugged/LeaderF/autoload/leaderf/python/leaderf/fileExpl.py", line 845, in _previewInPopup self._createPopupPreview(line, source, 0) File "/home/james/.vim/plugged/LeaderF/autoload/leaderf/python/leaderf/utils.py", line 1419, in deco return func(self, args, kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/james/.vim/plugged/LeaderF/autoload/leaderf/python/leaderf/manager.py", line 940, in _createPopupPreview self._useExistingWindow(title, source, line_num, jump_cmd) File "/home/james/.vim/plugged/LeaderF/autoload/leaderf/python/leaderf/manager.py", line 910, in _useExistingWindow cur_filetype = getExtension(filename) ^^^^^^^^ UnboundLocalError: cannot access local variable 'filename' where it is not associated with a value

### Steps to reproduce
error occurs when trying to search for any non-empty file after typing a single keystroke. i am unable to add any more letters to the search query after that initial keystroke but i AM able to use the arrows to navigate the file list (after clearing the error each time). using `<C-j>` and `<C-k>` no longer works
### Actual behaviour

error above

### Expected behaviour

able to search for files

[Yggdroot]

Fixed.