Install the pylance extension in vscode or manually download it from the marketplace
The extension path should be similar to this: ~/.vscode/extensions/ms-python.vscode-pylance-2023.11.10
In init.vim, this will automatically detect the latest pylance version because after an upgrade the old plugin might linger for a while:
call coc#config('languageserver', { "pylance": { "module": expand("~/.vscode/extensions/ms-python.vscode-pylance-*/dist/server.bundle.js", 0, 1)[0] } })