[pi-eyes] AttributeError: 'NoneType' object has no attribute 'glActiveTexture'

[retikulumx]

On a Raspberry Zero, fresh installed with Bullseye, I get the following error

Traceback (most recent call last): File "/boot/Pi_Eyes/eyes.py", line 9, in <module> import pi3d File "/usr/local/lib/python3.9/dist-packages/pi3d/__init__.py", line 10, in <module> from pi3d.constants import (USE_PYGAME, PIL_OK, File "/usr/local/lib/python3.9/dist-packages/pi3d/constants/__init__.py", line 198, in <module> PLATFORM, bcm, openegl, opengles = _detect_platform_and_load_libraries() File "/usr/local/lib/python3.9/dist-packages/pi3d/constants/__init__.py", line 193, in _detect_platform_and_load_libraries set_gles_function_args(opengles) #function defined in constants/gl.py File "/usr/local/lib/python3.9/dist-packages/pi3d/constants/gl.py", line 387, in set_gles_function_args gles.glActiveTexture.argtypes = [GLenum] # AttributeError: 'NoneType' object has no attribute 'glActiveTexture'

[makermelissa]

The script may need updating.

[MNTrailBoss]

Ditto. Right after reboot from the pieyes load.

[PaintYourDragon]

From the forums, somewhat different hardware but same error, unsure of fix but something to try:

Not sure what to suggest here. Just tested with 2022-09-22-raspios-buster-armhf-lite.img.xz, ran pi-eyes.sh for 240x240 screens, reboot when prompted and it runs successfully on both Pi 3 B and B+.

Just rampant speculation because I don’t know what else it could be, but if it’s a slower SD card, maybe some prerequisite service is taking some time to load. Try adding a delay (e.g. 10 seconds) in /etc/rc.local before eyes.py is run:
cd /boot/Pi_Eyes;sleep 10;python3 eyes.py --radius 240 &

[bikerglen]

FWIW: With a RPi 3B+, the Adafruit Animated Eyes Bonnet (# 3813), and two of the Adafruit OLED displays (# 1431), I had to go all the way back to 2021-05-07-raspios-buster-armhf-lite.img to get it to work. With a more recent OS, e.g. any Bullseye or Bookworm version, I had the same AttributeError: 'NoneType' object has no attribute 'glActiveTexture' error as the other users.

No problem, however, using the latest and greatest OS images with a RPi 4. See my update below.

[retikulumx]

No problem, however, using the latest and greatest OS images with a RPi 4.

You mean, on Rpi4 it runs with the most recent bookworm?

Yeah, my Zero with Pi-Eyes is also running on buster. It's a shame that the thing only runs with a Linux pre-pre-release. No further development. That has to be stated on the product pages and I would have liked to know this before buying the hardware.

[bikerglen]

You mean, on Rpi4 it runs with the most recent bookworm?

Crud. Sorry. I meant the latest legacy 32-bit full version for RPi 4. "Raspberry Pi OS (Legacy) Full" and dated 2023-05-03 in the official Raspberry Pi Imager tool. I can grab another OLED and double check this later today.

The Adafruit Pi Eyes installer script has trouble with the mandatory Python venv's in Bookworm.

[PaintYourDragon]

Software dependencies are explained in the guide:
https://learn.adafruit.com/animated-snake-eyes-bonnet-for-raspberry-pi/software-installation
In short: Desktop Bullseye on Pi 4, Lite Legacy (Buster) on older boards, 32-bit in all cases.
Haven’t yet tested w/Bookworm on any board (incl Pi 5).

Compatibility issues — the glActiveTexture message, etc. — are a product of the Pi3D library. That got all complicated with the release of the Pi 4 and is the reason different OS versions are needed in each case. A single-current-OS approach would be really nice, but I don’t know if that’s ever coming to Pi3D or if broadly compatible alternatives exist (maybe vulkan, IDK).

(i.e. this is not an installer script problem, it’s a Pi3D problem)

[makermelissa-piclaw]

Closing as out-of-scope for this repo.

Per @PaintYourDragon's earlier comment, this is a Pi3D library compatibility issue, not an installer-script bug — the gles.glActiveTexture failure happens during Pi3D's own platform detection, before any of the installer-provided code runs.

The fix path is upstream in Pi3D (or pinning OS versions per the guide). The installer script itself isn't broken.

For anyone landing here: the Animated Snake Eyes guide documents the supported OS combinations (Desktop Bullseye on Pi 4, Lite Legacy/Buster on older boards, 32-bit in all cases).

[makermelissa]

@makermelissa-piclaw, I'm going to keep this open for now. I'd like to do a rewrite that works for modern systems soon as a fix.