@Zheng-Han I did one experiment. I did firstboot -y sync reboot As I understand, the device is in factory reset. After reboot, I login. Installed python-light python-pip I tested Python command root@Omega-236B:~# python Python 2.7.18 (default, Sep 09 2024, 15:48:40) [GCC 7.3.0] on linux2 Type "help", "copyright", "credits" or "license" for more information. reboot I tested the python command BusyBox v1.28.3 () built-in shell (ash) / __ ___ ()__ ___ / __ _ _ ___ ___ ____ _ / // / _ / / _ / _ \ / // / ' / -) _ / _ / _/////___//// _////_/_, /_,/ W H A T W I L L Y O U I N V E N T ? /__/ Ω-ware: 0.3.4 b259 root@Omega-236B:~# python Segmentation fault root@Omega-236B:~# I got segmentation fault. I did not install any extra libraries. Any Idea why it is happening.

Hey @Ravi, you can try using the openwrt-23.05 beta firmware, it supports python 3.11 First read about the key changes in the beta firmware, and then you can follow the procedure to installi the beta firmware Documentation specific to the beta firmware can be found at: https://documentation.onioniot.com/

@ElGoose39 Take a look at the 23.05 documentation that has a detailed explanation on how to create your own repository. You could then remove the old version of python and install your own version. This documentation is relevant to the earlier Onion firmware 18.06 as well.

@SUPERMARINE98 I think it is running out of space in the /tmp directory. Try setting the environent variable to point to where you have the most space before you rur pip TMPDIR=/mnt/sda1/tmp pip .....

Thanks for sharing such a helpful instruction, really appreciate for your article.

@crispyoz thankssss , I appreciate the comment

@Lazar-Demin it works perfectly

@crispyoz I already did it but didn't work, got the same message

@sam-walton said in Leanest python: It would appear that my original Omega does not have access to these libraries. I swapped it out with a newer Omega2 which appears to have the same storage space Sorry, should have mentioned this advice is for the Omega2/2+ and does not apply to the original Omega @sam-walton said in Leanest python: Unfortunately, it fails due to the same problem that python-light and perhaps the urllib3 is too much for the Omega2. Is that true? Would installing PHP instead of Python fit on an Omega2 ? Not sure of the top of my head. I would suggest grabbing an Omega2+ and trying everything out. Then working backwards to make it fit on the Omega2 if that's a requirement.

@jonty The reason why you have to kill the process is because you are not exiting gracefully. You should capture SIGINT and close the port, or there is a KeyboardInterrupt exception you could capture and close the port. Since this is not a python forum and your underlying issue is not specific to Omega or OpenWRT I'll leave you to look into this further.

Thanks for sharing this information!

@David-Kerr thanks - i'd considered the hardware option but I don't want to damage my board I will have a poke around the power-dock-2 script and see if i can figure something out from that.

@ecooper MTD makes use of CRC so that may be a good starting point for you if you're using C.

Yes, those work perfectly and are used to determine the device is there. But there is no way to read the actual range data without a lot of i2c back-and-forth with their custom protocol. There are python libraries to handle this, but none of them work on the Omega (yet)