I have installed nrfutil on my Windows 10 computer and get the following error when running it:
C:\Users\00315055>nrfutil --helpTraceback (most recent call last): File "c:\python37\lib\runpy.py", line 193, in _run_module_as_main "__main__", mod_spec) File "c:\python37\lib\runpy.py", line 85, in _run_code exec(code, run_globals) File "C:\Python37\Scripts\nrfutil.exe\__main__.py", line 5, in <module> File "c:\python37\lib\site-packages\nordicsemi\__main__.py", line 53, in <module> from nordicsemi.dfu.dfu_transport_serial import DfuTransportSerial File "c:\python37\lib\site-packages\nordicsemi\dfu\dfu_transport_serial.py", line 52, in <module> from nordicsemi.lister.device_lister import DeviceLister File "c:\python37\lib\site-packages\nordicsemi\lister\device_lister.py", line 39, in <module> from nordicsemi.lister.windows.lister_win32 import Win32Lister File "c:\python37\lib\site-packages\nordicsemi\lister\windows\lister_win32.py", line 43, in <module> from constants import DIGCF_PRESENT, DEVPKEY, DIGCF_DEVICEINTERFACEModuleNotFoundError: No module named 'constants'
I have the following Python version:
C:\Users\00315055>python --versionPython 3.7.4
BR / Björn
1) I uninstalled components (it has nothing to do with nrfutil):
pip uninstall components
2) I uninstalled nrfutil:
3) I installed latest version of nrfutil:
Fixed by downgrading to Python 3.8.6 and pip 20.1.1
Yes, it is unfortunate. The current nrfutil release was made before Python 3.9, hence not included in our release tests. I have already reported this to the team, so it should get fixed in the next…
i have the exact same issue as you had. But in my case your solution does not work. I cant get nrfutil to function properly.
ImportError: cannot import name 'DIGCF_PRESENT' from 'constants' (c:\python37\lib\site-packages\constants.py)
This error does still appear.
Hi A Wagner,
Today I installed Python and nrfutil on a new computer. I installed Python 3.9.1 and then nrfutil through pip. I had the same issue as originally reported here, so it seems nrfutil does not work with Python 3.9.x. I downgraded Python to 3.7 and then nrfutil worked again.
Nordic should fix this issue, very irritating when you download something from scratch that crashes first thing :-(
Yes, it is unfortunate. The current nrfutil release was made before Python 3.9, hence not included in our release tests. I have already reported this to the team, so it should get fixed in the next version.
Thanks Vidar, great that you have a fix in your plans :-)
Hmm, I have a fresh install with 3.8.7 and I see the same error:
ImportError: cannot import name 'DIGCF_PRESENT' from 'constants' (c:\users\someone\appdata\local\programs\python\python38\lib\site-packages\constants.py)
This is a bummer since I need to test secure DFU for a client.