>>> text = ur.urlopen("http://chat.stackexchange.com/transcript/240/2016/8/15/0-24").read().decode('utf-8')
>>> len(text)
1131756
>>> p = parser()
>>> p.feed(text)
>>> set(m['name'] for k,m in p.messages.items())
{'GamrCorps', 'flawr', 'Mitch Schwartz', 'Dada', 'Downgoat', 'micro buster', 'TessellatingHeckler', 'muddyfish', 'Ourous', 'zyabin101', 'Helka Homba', 'Business Cat', 'mınxomaτ', 'Nathan Merrill', 'DerpfacePython', 'Sherlock9', "El'endia Starman", 'Destructible Watermelon', 'Alex A.', 'orlp', 'Releasing Helium Nuclei', 'New Main Posts', "Conor O'Brien", 'TùxCräftîñg', 'drobilc', 'N…