johnprinter.py

import twitch
from escpos import printer
import string
printable = set(string.printable)

p = printer.Serial("COM13")

def do(message):
    print(f"{message.sender}: {message.text}")
    p.set(text_type="B")
    p.text(message.sender)
    p.set(text_type="NORMAL")
    p.text(": ")
    try:
        truncated = message.text[0:min(
            len(message.text), 86 - (len(message.sender) + 2))]
        out = ''.join(filter(lambda x: x in printable, truncated))
        p.text(out)
    except:
        p.set(invert=True)
        p.text("[unprintable]")
        p.set(invert=False)
    p.text("\n")


twitch.Chat(channel='#splitpixl', nickname='splitpixl',
            oauth="YOUR AUTH TOKEN").subscribe(do)

# Get an auth token from: https://twitchapps.com/tmi/