Simple grammar generator

gistfile1.txt

import random


class Announcement(object):

    def __init__(self, article):
        self.grammars['article'] = [article]

    start = ['"%(article)s" is a %(hyperbole)s, %(name)s!']
    grammars = {
        'hyperbole': [
            "Hot Potato",
            "Screamin' Green Been",
            "Deviled Egg"
        ],
        'name': [
            'folks',
            'ladies and gents',
            'bros'
        ]
    }

    def __getitem__(self, key):
        if key in self.grammars:
            return random.choice(self.grammars[key])
        else:
            raise KeyError

    def __str__(self):
        return random.choice(self.start) % self

announcement = Announcement("Some testing article")

print(announcement)