VS Code + Python + Poetry + direnv + ...

.envrc

# Save this file in the project root.

dotenv_if_exists
layout poetry

poetry.sh

# Save this file as $HOME/.config/direnv/lib/poetry.sh

layout_poetry() {
  if [[ ! -f pyproject.toml ]]; then
    log_error 'No pyproject.toml found. Use `poetry new` or `poetry init` to create one first.'
    exit 2
  fi

  local VENV=$(poetry env list --full-path | cut -d' ' -f1)
  if [[ -z $VENV || ! -d $VENV/bin ]]; then
    log_error 'No poetry virtual environment found. Use `poetry install` to create one first.'
    exit 2
  fi

  export VIRTUAL_ENV=$VENV
  export POETRY_ACTIVE=1
  PATH_add "$VENV/bin"
}

settings.jsonc

// Save this file in the project's .vscode directory as settings.json.

{
  "python.pythonPath": ".venv/bin/python",

  // Format on save using Black.
  "python.formatting.provider": "black",
  "[python]": {
    "editor.formatOnSave": true,
    "editor.codeActionsOnSave": {
      "source.organizeImports": true,
    },
  },

  // Exclude files and folders from explorer.
  "files.exclude": {
    "**/.ipynb_checkpoints": true,
    "**/.venv": true,
  },

  // Exclude files and folders from watcher.
  "files.watcherExclude": {
    "**/.venv/**": true,
  },

  // Exclude files and folders from search.
  "search.exclude": {
    "**/.venv": true,
  },
}