installation for MDBT42Q

[espruino-discuss]

Posted at 2021-03-17 by JumJum

I've tried to compile firmware for MDBT42Q.
Installation of nrfutil, copied from provision.sh, fails.
Any idea?

sudo pip install --ignore-installed nrfutil
....
....
Collecting pc_ble_driver_py>=0.14.2 (from nrfutil)
  Could not find a version that satisfies the requirement pc_ble_driver_py>=0.14.2 (from nrfutil) (from versions: 0.1.0, 0.2.0, 0.3.0, 0.4.0, 0.5.0, 0.6.0, 0.6.1, 0.6.2, 0.8.0, 0.8.1, 0.9.0, 0.9.1, 0.10.0, 0.11.0, 0.11.1, 0.11.2, 0.11.3, 0.11.4)
No matching distribution found for pc_ble_driver_py>=0.14.2 (from nrfutil)

[gfwilliams]

Posted at 2021-03-17 by @gfwilliams

That's an odd one. Only thing I can think is maybe it's trying to install it for Python 2.7, not Python 3?

[espruino-discuss]

Posted at 2021-03-17 by JumJum

hmm, good point, I ran into several problems with python-version-hell in the past
Hmm, I'm running python 3.6.9, and pip 9.0.1, will try with other versions

[gfwilliams]

Posted at 2021-03-17 by @gfwilliams

That's odd - it should be ok. Always worth trying to update pip itself? Maybe even running pip3.6 would do it?

[espruino-discuss]

Posted at 2021-03-18 by JumJum

After doing some searching in the web, BTW I'm working with ubuntu 18.04.4 LTS
Actual nrfutil version is 6, but with that I get errors around installing pc-ble-driver

Figured out, that nrfutil V 5.22 can be installed.
Actual installation according to pip list is

.....
.....
nrfutil (5.2.0)
....
....
pc-ble-driver-py (0.11.4)
....
....

I've got an error and somewhere I found to do this

export LC_ALL=C.UTF-8
export LANG=C.UTF-8

But now I'm running into problems inside py-sources.
Sometimes life is not as friendly as it could be ;-(

[gfwilliams]

Posted at 2021-03-19 by @gfwilliams

Sorry, that's very frustrating. Not quite sure what to suggest....

What command did you use to force installation of nrfutil 5.2.0 though? I'm happy to add that to provision.sh instead?

[espruino-discuss]

Posted at 2021-03-19 by JumJum

I used pip install nrfutil==5.2.0
See https://pypi.org/project/nrfutil/#history for more

But as long as I don't get it running, I would not suggest to change provision.sh

[espruino-discuss]

Posted at 2021-03-22 by JumJum

got it running at the end (HIP HIP HURRAY)
IMHO at the end its all about PYTHON version hell. No idea, why python3.6 did not accept nrfutil 6.1.0. Testing with TensorFlow and Opencv might have been the root of problems
I'm pretty sure people with more knowhow around python could explain. People like me, that want to compile Espruino only, have to walk through dessert to find some water_

This is my way to find water:

• installed python3.8
• added an alias for python to python3.8 in .bashrc for user espruino
• logged out and logged in again
• installed pip with python -m pip install pip did this because pip before still pointed to python3.6. Therefore all installation had been done to .local/lib/python3.6
• installed nrfutil with python -m pip install nrfutil
  now I've a folder ~/.local/lib/python3.8/site-packages.And nrfutil is installed in version 6.1.0
  Next switched to folder with Espruino-installation and called
• RELEASE=1 DFU_UPDATE_BUILD=1 BOARD=MDBT42Q make >tmp/stdout 2>tmp/stderr
  and it worked fine. I've got my zip for uploading to MDB42Q board

[gfwilliams]

Posted at 2021-03-23 by @gfwilliams

Thanks for the update! I bet that'll help a bunch of people.

Yes, I have no idea why Python devs seem intent on introducing breaking changes between versions of Python :(