Was ist an meinem Code falsch? "IndentationError: expected an indented block"

#!/usr/bin/python
# -*- coding: utf-8 -*-
import os
import fnmatch
import time
import MySQLdb
import logging
from datetime import datetime
import RPi.GPIO as GPIO
logging.basicConfig(filename='/home/pi/solarueberwachung/DS18B20_error.log',
level=logging.DEBUG,
format='%(asctime)s %(levelname)s %(name)s %(message)s')
logger=logging.getLogger(__name__)
def insertDB(datetime, temperature, pumpe):
  query = "INSERT INTO solarueberwachung (datetime, SolarVorlauf, SolarRuecklauf, SpeicherUnten, SpeicherOben, Pumpe) VALUES (%s, %s, %s, %s, %s, %s);"
  args = (datetime, temperature[2], temperature[1], temperature[0], temperature[3], pumpe)
  try:
    con = MySQLdb.connect(host='localhost',database='solarueberwachung',user='solarueberwachung',password='solarueberwachung')
    cursor = con.cursor()
    cursor.execute(query, args)
    con.commit()
  finally:
    cursor.close()
    con.close()
# Get readings from sensors and store them in MySQL
now = datetime.now() # datetime = Klasse, in der die Funktion "now()" aufgerufen wird. Diese gibt ein Objekt an die Var "now" weiter.
zeitstempel = now.strftime('%Y-%m-%d %H:%M:%S') # gibt das aktuelle Datum + Uhrzeit aus
#print datetime
datetime = []
sensornummer = []
temperature = []
IDs = []
for sensorname in os.listdir("/sys/bus/w1/devices"):
  if fnmatch.fnmatch(sensorname, '28-*'):
    with open("/sys/bus/w1/devices/" + sensorname + "/w1_slave") as sensor:
lines = sensor.readlines()
      if lines[0].find("YES"):
         pok = lines[1].find('=')
         temperature.append(lines[1][pok+1:pok+3])
         IDs.append(sensorname)
         datetime.append(zeitstempel)
      if sensorname == '28-ff4f421f64ff': #hier eigene Sensor-IDs eintragen
         sensornummer.append("Sensor 4")
      if sensorname == '28-d64e421f64ff': #hier eigene Sensor-IDs eintragen
         sensornummer.append("Sensor 1")
      if sensorname == '28-ef93431f64ff': #hier eigene Sensor-IDs eintragen
         sensornummer.append("Sensor 5")
      if sensorname == '28-0000053bba61': #hier eigene Sensor-IDs eintragen
         sensornummer.append("Solar Ruecklauf")
    else:
      logger.error("Error reading sensor with ID: %s" % (sensorname))
GPIO.setmode(GPIO.BCM)
GPIO.setup(27, GPIO.IN)
led = GPIO.input(27)
if led == 0: #der LDR liefert den reziproken Wert, daher wird dieser in der nächsten Zeile umgedreht
  led = 1
  print "Pumpe ist an"
else:
  led = 0
  print "Pumpe ist aus"
if (len(temperature)>0):
  insertDB(zeitstempel, temperature, led)
  print(IDs, sensornummer, zeitstempel, temperature)

#!/usr/bin/env python3

import logging
from contextlib import closing
from datetime import datetime
from pathlib import Path
import mysql.connector
from gpiozero import DigitalInputDevice
from w1thermsensor import W1ThermSensor

LOGGING_FILE = Path("/home/pi/solarueberwachung/DS18B20_error.log")
PUMPE_STATUS_PIN = 27
ID_TO_SENSOR_NAME = {
    "28-d64e421f64ff": "S1",
    "28-3077421f64ff": "S2",
    "28-566a9c1e64ff": "S3",
}

USER = "andre"
PASSWORD = "solarueberwachung"
HOST = "localhost"
DATABASE = "solarueberwachung"


def insert_to_db(timestamp, sensor_name_to_temperature, pumpe):
    query = """
        INSERT INTO 
            solarueberwachung (
                datetime, 
                S1, 
                S2, 
                S3, 
                P1
            )
        VALUES 
            (%s, %s, %s, %s, %s, %s);
    """
    args = (
        timestamp,
        sensor_name_to_temperature["S1"],
        sensor_name_to_temperature["S2"],
        sensor_name_to_temperature["S3"],
        pumpe,
    )
    with closing(
        mysql.connector.connect(
            host=HOST, database=DATABASE, user=USER, password=PASSWORD
        )
    ) as connection:
        try:
            with connection.cursor() as cursor:
                cursor.execute(query, args)
        except Exception:
            connection.rollback()
            raise
        else:
            connection.commit()


def main():
    logging.basicConfig(
        filename=LOGGING_FILE,
        level=logging.DEBUG,
        format="%(asctime)s %(levelname)s %(name)s %(message)s",
    )

    logger = logging.getLogger(__name__)
    pump_status = DigitalInputDevice(PUMPE_STATUS_PIN)
    timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
    sensor_name_to_temperature = {}
    for sensor in W1ThermSensor.get_available_sensors():
        print(
            f" Zeit: {timestamp} Sensor: {sensor.id} hat die Temperatur {sensor.get_temperature()}"
        )
        sensor_name_to_temperature[
            ID_TO_SENSOR_NAME.get(sensor.id)
        ] = sensor.get_temperature()

    if pump_status.value:
        print("Pumpe ist AUS")
        pumpe = 0
    else:
        print("Pumpe ist AN")
        pumpe = 1

    insert_to_db(timestamp, sensor_name_to_temperature, pumpe)


if __name__ == "__main__":
    main()

pi@raspberrypi:~/solarueberwachung $ python solarueberwachung.py
 Zeit: 2023-04-24 20:54:00 Sensor: d64e421f64ff hat die Temperatur 19.6875
 Zeit: 2023-04-24 20:54:00 Sensor: 3077421f64ff hat die Temperatur 19.375
 Zeit: 2023-04-24 20:54:00 Sensor: 566a9c1e64ff hat die Temperatur 18.5625
Pumpe ist AUS
Traceback (most recent call last):
  File "/home/pi/solarueberwachung/solarueberwachung.py", line 90, in <module>
    main()
  File "/home/pi/solarueberwachung/solarueberwachung.py", line 86, in main
    insert_to_db(timestamp, sensor_name_to_temperature, pumpe)
  File "/home/pi/solarueberwachung/solarueberwachung.py", line 40, in insert_to_db
    sensor_name_to_temperature["S1"],
KeyError: 'S1'

#!/usr/bin/env python3

import logging
from contextlib import closing
from datetime import datetime
from pathlib import Path
import mysql.connector
from gpiozero import DigitalInputDevice
from w1thermsensor import W1ThermSensor

LOGGING_FILE = Path("/home/pi/solarueberwachung/DS18B20_error.log")
PUMPE_STATUS_PIN = 27
ID_TO_SENSOR_NAME = {
    "28-d64e421f64ff": "S1",
    "28-3077421f64ff": "S2",
    "28-566a9c1e64ff": "S3",
}

USER = "andre"
PASSWORD = "solarueberwachung"
HOST = "localhost"
DATABASE = "solarueberwachung"


def insert_to_db(timestamp, sensor_name_to_temperature, pumpe):
    query = """
        INSERT INTO 
            solarueberwachung (
                datetime, 
                S1, 
                S2, 
                S3, 
                P1
            )
        VALUES 
            (%s, %s, %s, %s, %s, %s);
    """
    args = (
        timestamp,
        sensor_name_to_temperature["S1"],
        sensor_name_to_temperature["S2"],
        sensor_name_to_temperature["S3"],
        pumpe,
    )
    with closing(
        mysql.connector.connect(
            host=HOST, database=DATABASE, user=USER, password=PASSWORD
        )
    ) as connection:
        try:
            with connection.cursor() as cursor:
                cursor.execute(query, args)
        except Exception:
            connection.rollback()
            raise
        else:
            connection.commit()


def main():
    logging.basicConfig(
        filename=LOGGING_FILE,
        level=logging.DEBUG,
        format="%(asctime)s %(levelname)s %(name)s %(message)s",
    )

    logger = logging.getLogger(__name__)
    pump_status = DigitalInputDevice(PUMPE_STATUS_PIN)
    timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
    sensor_name_to_temperature = {}
    for sensor in W1ThermSensor.get_available_sensors():
        print(
            f" Zeit: {timestamp} Sensor: {sensor.id} hat die Temperatur {sensor.get_temperature()}"
        )
        sensor_name_to_temperature[
            ID_TO_SENSOR_NAME.get(sensor.id)
        ] = sensor.get_temperature()

    if pump_status.value:
        print("Pumpe ist AUS")
        pumpe = 0
    else:
        print("Pumpe ist AN")
        pumpe = 1
        
    print(sensor_name_to_temperature)
    insert_to_db(timestamp, sensor_name_to_temperature, pumpe)


if __name__ == "__main__":
    main()

pi@raspberrypi:~/solarueberwachung $ python solarueberwachung.py
 Zeit: 2023-04-25 06:38:28 Sensor: d64e421f64ff hat die Temperatur 18.3125
 Zeit: 2023-04-25 06:38:28 Sensor: 3077421f64ff hat die Temperatur 17.8125
 Zeit: 2023-04-25 06:38:28 Sensor: 566a9c1e64ff hat die Temperatur 16.875
Pumpe ist AN
Traceback (most recent call last):
  File "/home/pi/solarueberwachung/solarueberwachung.py", line 90, in <module>
    main()
  File "/home/pi/solarueberwachung/solarueberwachung.py", line 86, in main
    insert_to_db(timestamp, sensor_name_to_temperature, pumpe)
  File "/home/pi/solarueberwachung/solarueberwachung.py", line 40, in insert_to_db
    sensor_name_to_temperature["S1"],
KeyError: 'S1'

Database changed
MariaDB [solarueberwachung]> describe solarueberwachung;
+----------+--------------+------+-----+---------+----------------+
| Field    | Type         | Null | Key | Default | Extra          |
+----------+--------------+------+-----+---------+----------------+
| id       | int(11)      | NO   | PRI | NULL    | auto_increment |
| datetime | datetime     | NO   |     | NULL    |                |
| S1       | decimal(3,1) | YES  |     | NULL    |                |
| S2       | decimal(3,1) | YES  |     | NULL    |                |
| S3       | decimal(3,1) | YES  |     | NULL    |                |
| P1       | int(1)       | YES  |     | NULL    |                |
| P2       | int(1)       | YES  |     | NULL    |                |
+----------+--------------+------+-----+---------+----------------+
7 rows in set (0.004 sec)