Read digital and analog input on Raspberry Pi 3 using Python

Question

I have a sensor hooked up to the Raspberry Pi 3 right now, and I am currently trying to read the humidity and temperature sensor data. This sensor was previously hooked up to an Arduino, and I have successfully read the sensor values using the following Arduino code:

vout = analogRead(LM35DZ); //Reading temperature sensor data, LM35DZ = A1
tempc = (vout*500)/1023; //Temperature in Celsius 
readData = DHT.read22(dataPin); // Read humidity sensor data from Digital Port datapin = 8
t = DHT.temperature; // obtaining temperature for DHT sensor
h = DHT.humidity;

I am trying to achieve the same thing on the Raspberry Pi. I rehooked up all the wires and I am trying to get the same sensor data. My dataPin (previously pin 8 on Arduino) is connected to GPIO17 and LM35DZ(previous connected to A1 on Arduino) is connected to GPIO4.

I have two questions:

1. How do you read analog data from a GPIO pin? I am looking for a similar functionality to Arduino's analogRead() function.

2. I am reading temperature and sensor data from GPIO17 using the following code:

   import dht11
   import RPi.GPIO as GPIO           
   readData = dht11.DHT11(pin = 17)
   humidityResult = readData.read()
   t = humidityResult.temperature
   h = humidityResult.humidity
   

   But currently it's not reading any data (temperature and humidity give 0).

If anyone knows the solution to these two problems, please let me know!

Answer 1

Cant do comments. (sorry)

Do you have an resistor between your power and dq pin? Might have an electrical technical drawing of your setup?