Doesn't run script

[msslava]

Hi,

The last update does not run the script.

~/xiaomi_mi_scale/src $ python3 Xiaomi_Scale.py File "Xiaomi_Scale.py", line 146 sys.stdout.write(f"{datetime.now().strftime('%Y-%m-%d %H:%M:%S')} - Publishing data to topic {MQTT_PREFIX + '/' + user + '/weight'}: {message}\n") ^ SyntaxError: invalid syntax

My environment:
raspberry pi 2
bluetooth stick

[bpaulin]

Hello,

Syntax error may come from a wrong python version, can you send python --version ?

[msslava]

Hello,
Sorry for the late reply,
I have Python 2.7.13 installed

[lolouk44]

you need python3 to run the script.
if you run the script manually, make sure you call it with python3 (like you did above):
Try and run it un-buffered (with -u):
python3 -u Xiaomi_Scale.py

[msslava]

Same error:

pi@server:~/xiaomi_mi_scale/src $ python3 -u Xiaomi_Scale.py File "Xiaomi_Scale.py", line 146 sys.stdout.write(f"{datetime.now().strftime('%Y-%m-%d %H:%M:%S')} - Publishing data to topic {MQTT_PREFIX + '/' + user + '/weight'}: {message}\n") ^ SyntaxError: invalid syntax

[lolouk44]

which version of python3 do you have?
(python3 --version)
The only thing I can think of is the f-strings which need python 3.6 or higher
Any reason you're not using the docker container? All pre-requisites are installed for you...

[msslava]

Python 3.5.3.

I do not use docker, because the raspberry does not have enough performance. The containers stop after a while.
All pre-requisites are installed.

[lolouk44]

ok, then you need to upgrade to python 3.6 or higher...
Alternatively feel free to update the sys.stdout.write lines that include f-strings (starting f") and replace them with the "old" style as you see fit...

[msslava]

Ok, thank you