"Failed to get reading. Try again!" DHT11 Raspberry Pi 4B?

#!/usr/bin/python
# Copyright (c) 2014 Adafruit Industries
# Author: Tony DiCola

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
import sys

import Adafruit_DHT


# Parse command line parameters.
sensor_args = { '11': Adafruit_DHT.DHT11,
                '22': Adafruit_DHT.DHT22,
                '2302': Adafruit_DHT.AM2302 }
if len(sys.argv) == 3 and sys.argv[1] in sensor_args:
    sensor = sensor_args[sys.argv[1]]
    pin = sys.argv[2]
else:
    print('Usage: sudo ./Adafruit_DHT.py [11|22|2302] <GPIO pin number>')
    print('Example: sudo ./Adafruit_DHT.py 2302 4 - Read from an AM2302 connected to GPIO pin #4')
    sys.exit(1)

# Try to grab a sensor reading.  Use the read_retry method which will retry up
# to 15 times to get a sensor reading (waiting 2 seconds between each retry).
humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)

# Un-comment the line below to convert the temperature to Fahrenheit.
# temperature = temperature * 9/5.0 + 32

# Note that sometimes you won't get a reading and
# the results will be null (because Linux can't
# guarantee the timing of calls to read the sensor).
# If this happens try again!
if humidity is not None and temperature is not None:
    print('Temp={0:0.1f}*  Humidity={1:0.1f}%'.format(temperature, humidity))
else:
    print('Failed to get reading. Try again!')
    sys.exit(1)

#!/usr/bin/python
# coding=utf-8

# Benoetigte Module werden importiert und eingerichtet
import RPi.GPIO as GPIO
import Adafruit_DHT
import time

# Die Pause von zwei Sekunden zwischen den Messungen wird hier eingestellt
sleeptime = 2

# Sensor should be set to Adafruit_DHT.DHT11,
# Adafruit_DHT.DHT22, or Adafruit_DHT.AM2302.
DHTSensor = Adafruit_DHT.DHT11

# Hier kann der Pin deklariert werden, an dem das Sensormodul angeschlossen ist
GPIO_Pin = 23

print('KY-015 Sensortest - Temperatur und Luftfeuchtigkeit')

try:
while(1):
# Messung wird gestartet und das Ergebnis in die entsprechenden Variablen geschrieben
Luftfeuchte, Temperatur = Adafruit_DHT.read_retry(DHTSensor, GPIO_Pin)

print("-----------------------------------------------------------------")
if Luftfeuchte is not None and Temperatur is not None:

# Das gemessene Ergebnis wird in der Konsole ausgegeben
print('Temperatur = {0:0.1f}°C | rel. Luftfeuchtigkeit = {1:0.1f}%'.format(Temperatur, Luftfeuchte))

# Da der Raspberry Pi aufgrund des Linux-Betriebsystems für Echtzeitanwendungen benachteiligt ist,
# kann es sein, dass aufgrund von Timing Problemen die Kommunikation scheitern kann.
# In dem Falle wird eine Fehlermeldung ausgegeben - ein Ergebnis sollte beim nächsten Versuch vorliegen
else:
print('Fehler beim Auslesen - Bitte warten auf nächsten Versuch!')
print("-----------------------------------------------------------------")
print("")
time.sleep(sleeptime)

# Aufraeumarbeiten nachdem das Programm beendet wurde
except KeyboardInterrupt:
GPIO.cleanup()