WARNING: You are using pip version 21.2.4; however, version 21.3.1 is available. You should consider upgrading via the '/usr/local/bin/python -m pip install --upgrade pip' command. $ flake8 $ mypy . harvester/cli.py:92: error: Unsupported target for indexed assignment ("Set[str]") harvester/cli.py:94: error: Argument 2 to "main" has incompatible type "Set[str]"; expected "Union[Dict[Any, Any], str]" Found 2 errors in 1 file (checked 23 source files) Cleaning up file based variables ERROR: Job failed: exit code 1