def _init_caption_generator(request):
"""Initialze the caption generator by calculating the frequency table.
Args:
request (HttpRequest): request object.
"""
scraper = NewYorkerScraper()
try:
recent_winners = scraper.get_latest_winners()
except RuntimeError:
return None
freq_table = get_freq_table(recent_winners)
request.session['freq_table'] = freq_table
return freq_table
