go: python3 -m mypy --disallow-untyped-calls json_extract.py printf '{"abc": [0, 1, 2], "def": "value"}' | ./json_extract.py 'abc/0' 'def' install: ./install-file --file json_extract.py --directory /usr/local/lib/. ./install-link --src ../lib/json_extract.py --dest json-extract --cd-dir /usr/local/bin/. clean: rm -rf .mypy_cache