Digital IO Error with Orange Pi Zero

[wn2try]

Board Name

Orange Pi Zero

Steps

run testGpio.py for gpio testing:

import board
import digitalio

print("Hello blinka!")

# Try to create a Digital input
pin = digitalio.DigitalInOut(board.PA13)

print("Digital IO ok!")

Description

(serial-env) nz@orangepizero:~/mihome$ python testGpio.py
Hello blinka!
Traceback (most recent call last):
  File "/home/nz/mihome/testGpio.py", line 7, in <module>
    pin = digitalio.DigitalInOut(board.PA13)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/nz/serial-env/lib/python3.11/site-packages/digitalio.py", line 197, in __init__
    self.direction = Direction.INPUT
    ^^^^^^^^^^^^^^
  File "/home/nz/serial-env/lib/python3.11/site-packages/digitalio.py", line 227, in direction
    self._pin.init(mode=Pin.IN)
  File "/home/nz/serial-env/lib/python3.11/site-packages/adafruit_blinka/microcontroller/generic_linux/libgpiod/libgpiod_pin_2_x.py", line 53, in init
    config={int(self._num): None},
                ^^^^^^^^^
AttributeError: 'Pin' object has no attribute '_num'

Additional information

looks like the issue is related to the following code in libgpiod_pin_2_x.py.
somehow "_num" is not initialized here.

    def __init__(self, pin_id):
        self.id = pin_id
        chip_id = 0
        if isinstance(pin_id, tuple):
            chip_id, self._num = pin_id

manually assign pin_id to _num can fix the issue.

    def __init__(self, pin_id):
        self.id = pin_id
        chip_id = 0
        self._num = pin_id
        if isinstance(pin_id, tuple):
            chip_id, self._num = pin_id

[wn2try]

(serial-env) nz@orangepizero:~/mihome$ python testGpio.py
Hello blinka!
> /home/nz/serial-env/lib/python3.11/site-packages/adafruit_blinka/microcontroller/generic_linux/libgpiod/libgpiod_pin_2_x.py(52)init()
-> self._line_request = self._chip.request_lines(
(Pdb) s
> /home/nz/serial-env/lib/python3.11/site-packages/adafruit_blinka/microcontroller/generic_linux/libgpiod/libgpiod_pin_2_x.py(53)init()
-> config={int(self._num): None},
(Pdb) a
self = 13
mode = 0
pull = None
(Pdb) p _num
*** NameError: name '_num' is not defined
(Pdb) s
AttributeError: 'Pin' object has no attribute '_num'

[wn2try]

(serial-env) nz@orangepizero:~$ uname -a
Linux orangepizero 6.6.62-current-sunxi #1 SMP Sun Nov 17 14:08:59 UTC 2024 armv7l GNU/Linux

(serial-env) nz@orangepizero:~$ lsb_release -a
No LSB modules are available.
Distributor ID:	Debian
Description:	Armbian 24.11.1 bookworm
Release:	12
Codename:	bookworm

(serial-env) nz@orangepizero:~$ pip show gpiod Adafruit-Blinka
Name: gpiod
Version: 2.2.3
Summary: Python bindings for libgpiod
Home-page: https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git
Author: Bartosz Golaszewski
Author-email: [email protected]
License: LGPLv2.1
Location: /home/nz/serial-env/lib/python3.11/site-packages
Requires: 
Required-by: 
---
Name: Adafruit-Blinka
Version: 8.50.0
Summary: CircuitPython APIs for non-CircuitPython versions of Python such as CPython on Linux and MicroPython.
Home-page: https://github.com/adafruit/Adafruit_Blinka
Author: Adafruit Industries
Author-email: [email protected]
License: MIT
Location: /home/nz/serial-env/lib/python3.11/site-packages
Requires: adafruit-circuitpython-typing, Adafruit-PlatformDetect, Adafruit-PureIO, binho-host-adapter, pyftdi, sysv-ipc
Required-by: adafruit-circuitpython-busdevice, adafruit-circuitpython-connectionmanager, adafruit-circuitpython-max31865, adafruit-circuitpython-requests, adafruit-circuitpython-typing