With those three tools I can create a web app with basic functionality with few lines of code, like a prototype. For example:

  from datetime import datetime
  from bottle import get, post, request, run, template, redirect
  import dataset


  db = dataset.connect('sqlite:///database.sqlite')
  entries_table = db['entries']


  @get('/')
  def show_entries():
      entries = entries_table.all()
      entries_sorted = sorted(entries, reverse=True)
      return template('entries', entries=entries_sorted)


  @post('/add')
  def add_entry()
      entry = request.forms.get('entry')
      entries_table.insert(dict(
          text=entry,
          created_by=datatime.utcnow(),
      ))
      return redirect('/')


  run(reloader=True, debug=True)

- [1] https://dataset.readthedocs.io/en/latest/

- [3] https://docs.pipenv.org/

Edit: formatting.