Parse the content of the landing page of PyPI's simple API, and extract some fun facts:

• Longest package name
• Average package name length
• Number of packages with py, python and test in their name

$ python -m venv .venv
$ source .venv/bin/activate
$ python -m pip install -r requirements.xt
$ python pypisimple/scraping.py

• -o, --offline: Computes stats from the cached data stored in pypi.json (gets updated every time the script isn't run in offline mode).