always uses autopep8

1. it won’t work for me if you use python.* as a key:

{
        "venvPath": "/home/kaldown/.cache/pypoetry/virtualenvs",
        "venv": "api-ohFkNBde-py3.9",
        "formatting.provider": "black"
        "python.formatting.provider": "black"
}

1. this doesn’t work for black

:Format
[coc.nvim] Formatting with autopep8 failed. autopep8 module is not installed.
[coc.nvim] Formatted with autopep8

Logs from pyright-formatting

########## active formattor: autopep8
execPath:   autopep8
moduleName: autopep8
args:       --diff,/home/kaldown/projects/api/api/user.py.637c8314dedc40677769355f0c7e1395.py
########## Formatting with autopep8 failed
Formatting with autopep8 failed. autopep8 module is not installed.
Module 'autopep8' not installed.

[fannheyward]

pyrightconfig.json is used by Pyright, https://github.com/microsoft/pyright/blob/master/docs/configuration.md

The python.* configurations listed in README is used by coc-pyright, which are set and read by coc.nvim, you need to set them in coc-settings.json. I’ll update the README to describe it clearly.

[kaldown]

let g:python3_host_prog="/usr/bin/python" solved a problem with :checkhealth`