how to use FilesCompleter from a base dir

[nadavhalahmi]

for example: parser.add_argument('--file').completer = FilesCompleter('/home') will show all directories/files in /home

[evanunderscore]

I don't believe this is a supported feature of FilesCompleter; it only seeks to replicate ordinary command line file completion, either absolute or relative to the working directory. If you want to complete filenames from a specific directory, you will need to either modify the completer or implement your own as a custom completer.