Zerin

Thank you :) I will try "Restart=always" as you suggested 

Hello, I want to run a python script 24/7. I am using systemd service and it looks like this:

[Unit]
Description= start code
After=multi-user.target

[Service]
Type=simple
ExecStart= /usr/bin/python3 /home/pi3/code1.py
Restart=on-abort


[Install]
WantedBy=multi-user.target

When I enabled the systemd service it was running without error. but after few hours it stopped. I got the following error.

● codestart.service - start code
     Loaded: loaded (/lib/systemd/system/codestart.service; enabled; vendor preset: enabled)
     Active: failed (Result: exit-code) since Tue 2022-06-07 16:13:15 CEST; 20h ago
    Process: 859 ExecStart=/usr/bin/python3 /home/pi3/code1.py (code=exited, status=1/FAILURE)
   Main PID: 859 (code=exited, status=1/FAILURE)
        CPU: 1.086s

Jun 07 16:13:15 raspberrypi python3[859]:   File "/home/pi3/code1.py", line 54, in main
Jun 07 16:13:15 raspberrypi python3[859]:     ipcon.connect(HOST, PORT)
Jun 07 16:13:15 raspberrypi python3[859]:   File "/usr/local/lib/python3.9/dist-packages/tinkerforge/ip_connection.py", lin>
Jun 07 16:13:15 raspberrypi python3[859]:     self.connect_unlocked(False)
Jun 07 16:13:15 raspberrypi python3[859]:   File "/usr/local/lib/python3.9/dist-packages/tinkerforge/ip_connection.py", lin>
Jun 07 16:13:15 raspberrypi python3[859]:     tmp.connect((self.host, self.port))
Jun 07 16:13:15 raspberrypi python3[859]: OSError: [Errno 101] Network is unreachable
Jun 07 16:13:15 raspberrypi systemd[1]: codestart.service: Main process exited, code=exited, status=1/FAILURE
Jun 07 16:13:15 raspberrypi systemd[1]: codestart.service: Failed with result 'exit-code'.
Jun 07 16:13:15 raspberrypi systemd[1]: codestart.service: Consumed 1.086s CPU time.
~

Can you please suggest what should I do to restart the code in case of network failure? Thanks

Hallo,
Ich versuche, die Sensordaten alle 10 Sekunden abzurufen und in einer CSV-Datei zu speichern. 
Ich brauche kontinuierliche Daten. Aber ich erhalte einen Fehler. Den Code habe ich angehängt

HOST = "192.168.0.104"
PORT = 4223
UID_tem = "Nwv" # Change XYZ to the UID of your Temperature Bricklet 2.0

import csv

from tinkerforge.ip_connection import IPConnection

def cb_temperature(temperature):
    print("Temperature: " + str(temperature/100.0) + " °C")
    output1.writerow([str(temperature/100.0)])

if __name__ == "__main__":
    ipcon = IPConnection() # Create IP connection
    t = BrickletTemperatureV2(UID_tem, ipcon) # Create device object
    
    ipcon.connect(HOST, PORT) # Connect to brickd
    
    t.set_temperature_callback_configuration(1000, False, "x", 0, 0)
    
    csvfile1= open ('/home/pi/temp1_data.csv','wb')
    output1 = csv.writer(csvfile1,delimiter=';', quotechar='|')
    output1.writerow(['temperature'])
    t.register_callback(t.CALLBACK_TEMPERATURE, cb_temperature)
    csvfile1.close()

    
    input("Press key to exit\n") # Use raw_input() in Python 2
    ipcon.disconnect()

Ich erhalte den folgenden Fehler:

Exception in thread Callback-Processor:
Traceback (most recent call last):
  File "/usr/lib/python3.9/threading.py", line 954, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.9/threading.py", line 892, in run
    self._target(*self._args, **self._kwargs)
  File "/home/pi/.local/lib/python3.9/site-packages/tinkerforge/ip_connection.py", line 1239, in callback_loop
    self.dispatch_packet(data)
  File "/home/pi/.local/lib/python3.9/site-packages/tinkerforge/ip_connection.py", line 1219, in dispatch_packet
    cb(unpack_payload(payload, form))
  File "/home/pi/Desktop/testtempcsv.py", line 23, in cb_temperature
    output1.writerow([str(temperature/100.0)])
ValueError: I/O operation on closed file.

Kann mir jemand freundlicherweise sagen, wie ich das beheben kann? Danke :)