Print a list of tweets one by one separated by "="s.

    Parameters
    ----------
    tweets: list(dict)
        A list of tweets. Each tweet is a dict containing the username of the tweet's author,
        the post time, and the tweet body.

def print_tweets(tweets):
    """Print a list of tweets one by one separated by "="s.

    Parameters
    ----------
    tweets: list(dict)
        A list of tweets. Each tweet is a dict containing the username of the tweet's author,
        the post time, and the tweet body.
    """
    print('=' * 60)
    for index, tweet in enumerate(tweets):
        print('-' * 60)
        print('Tweet {}:'.format(index))
        print('Username:', tweet[pytwis_constants.USERNAME_KEY])
        print('Time:',
              datetime.datetime.fromtimestamp(int(tweet[pytwis_constants.TWEET_UNIXTIME_KEY])).\
              strftime('%Y-%m-%d %H:%M:%S'))
        print('Body:\n\t', tweet[pytwis_constants.TWEET_BODY_KEY])
        print('-' * 60)
    print('=' * 60)