Invalid syntax after moving python script to new Raspberry Pi

Question

I had this code running successfully on a Raspberry Pi:

from subprocess import check_output
import csv
from datetime import datetime
import threading

cmd = ['/usr/bin/ebusctl', 'read', '-f']
header = ['Date','Time','Flow','Return','Flame']

with open('/media/pi/VAILLANT/vaillant_log.csv', 'w', newline = '') as f:
    writer = csv.writer(f)
    writer.writerow(header)

def read_ebus():
    threading.Timer(10.0, read_ebus).start()

    date = datetime.today().strftime('%Y-%m-%d')
    time = datetime.today().strftime('%H:%M:%S')
    flow_temp =  float(check_output([*cmd, 'FlowTemp', 'temp']))
    return_temp =  float(check_output([*cmd, 'ReturnTemp', 'temp']))
    flame =  check_output([*cmd, 'Flame'])

    data = [date,time,flow_temp,return_temp,flame]

    with open('/media/pi/VAILLANT/vaillant_log.csv', 'a', newline='') as f:
        writer = csv.writer(f)
        writer.writerow(data)
read_ebus()

When I try to run it on adifferent RPi I get this error:

pi@raspberrypi:~ $ python vaillant/vaillant3.py
File "vaillant/vaillant3.py", line 18
flow_temp =  float(check_output([*cmd, 'FlowTemp', 'temp']))
                                 ^
SyntaxError: invalid syntax

Any ideas why this is happening please?

What version of python do you have on the RPi where the error occurs? — quamrana, Feb 10 '23 at 09:47
Specifically, does `python` run Python 2 on the device where this is not working? — tripleee, Feb 10 '23 at 09:50
Do the answers to this [question](https://stackoverflow.com/questions/34766677/python-splat-unpack-operator-in-python-cannot-be-used-in-an-expression) help at all? — quamrana, Feb 10 '23 at 09:52
If you have to use python 2, you could change the code to be like: `cmd + ['FlowTemp', 'temp']` — quamrana, Feb 10 '23 at 09:55
@quamrana thanks for your help. I will update to a newer version of python. — Mike, Feb 10 '23 at 09:57

Invalid syntax after moving python script to new Raspberry Pi

0 Answers0