Fiscal printer is a fiscal memory device used to record retail sales in Poland and few other countries in the world (eg. Russia, Czechia).
This library implements parts of XML protocol of one of the major Polish manufacturers Novitus.
Printing receipt example (for more, see tests):
from litex.novitus_xml import Printer
# uses USB device autodetection and no checksumming by default
# for more url examples, see PySerial documentation
# https://pyserial.readthedocs.io/en/latest/url_handlers.html
printer = Printer(
url='hwgrep://.*Novitus.*'
)
printer.receipt_begin()
printer.item(
name='First product',
quantity=2,
quantityunit='pcs',
ptu='A',
price=4
)
printer.item(
name='Second product',
quantity=4,
quantityunit='pcs',
description='A long description',
ptu='A',
price=2
)
printer.receipt_close(
total=16.0,
systemno='1/TEST/2020',
checkout='10',
cashier='John Doe'
)