micropython modus - pairty even not defined?

[Nilan8902]

I am trying to connect to one our standard controllers using a pico with the pico-2ch-rs485 hat. uisng Thonny i got almost everything to work, but can't get the last bit. Our controller is 19200 Baud, Even, 1. and i need to change the parity from the default None to Even.

When I change None to Even the text is not highlighted and running the code I get an error that the name 'Even' isn't defined.

How can I enable a communication with Parity Even?

from machine import UART
from machine import Pin
import struct
import time
import machine

from umodbus.serial import Serial as ModbusRTUMaster

RTU Host/Master setup

the following definition is for a RP2

rtu_pins = (Pin(0), Pin(1)) # (TX, RX)
uart_id = 0

#rtu_pins = (Pin(4), Pin(5)) # (TX, RX)
#uart_id = 1

host = ModbusRTUMaster(
pins=rtu_pins, # given as tuple (TX, RX)
baudrate=19200, # optional, default 9600
data_bits=8, # optional, default 8
stop_bits=1, # optional, default 1
parity=None, # optional, default None
# ctrl_pin=12, # optional, control DE/RE
uart_id=uart_id # optional, default 1, see port specific documentation
)

coil_status = host.read_coils(slave_addr=10, starting_addr=123, coil_qty=1)
print('Status of coil 123: {}'.format(coil_status))

[GitHubsSilverBullet]

from machine import UART
u = UART(0,19200,8,0,1) # parity even
u = UART(0,19200,8,1,1) # parity odd