bash_printer.py

#!/usr/bin/python3
import serial
import random
import re

printer = serial.Serial('/dev/ttyUSB0', 9200)

if not printer.isOpen():
        printer.open()

printer.write([28,46]) # wyłącz chińskie krzaczki
printer.write([27, 116, 36]) # wybierz iso 8859-2
printer.write([27, 51, 28]) # line spacing

with open('bash') as f:
        content = f.read()
        content = content.split('\n%\n')

        randjoke = random.choice(content)

        print(randjoke)

        randjoke = randjoke.split('\n', 1)
        title = randjoke[0]
        title = re.sub('http://', '', title)

        title = title.encode('iso-8859-2')
        text = randjoke[1].encode('iso-8859-2')

        printer.write([29,66,1]) # białe na czarnym
        printer.write(title)
        printer.write([0x0a])

        printer.write([29,66,0]) # czarne na białym
        printer.write(text)
        printer.write([0x0a, 0x0a, 0x0a])

printer.close()