bk2204

def main
  something_that_might_explode_violently
rescue YourError => error
  case
  when error.status == 404
    search
  when error.on_fire
    FireDepartment.call(type: :emergency)
  when error.status_code == 500
    shame caller(1)

bk2204

import urwid

def setup_cells():
    layout = [0, None, None, 1, 2, 3, None, 4, None, 5, 6, 7, 8, 9, 10, 11, 12,
            13, 14, None, 15, 16, None, 17, None]
    cells = []
    for item in layout:
        if item is None:
            pile = urwid.Pile([])
        else: