Hello,I am doing python code using raspberry pi for calculating body temperature. I want to know how can i access local variable that is declared in one function to the outside function
# Import Libraries import os import glob import time import RPi.GPIO as GPIO from time import sleep # Initialize the GPIO Pins os.system('modprobe w1-gpio') # Turns on the GPIO module os.system('modprobe w1-therm') # Turns on the Temperature module # Finds the correct device file that holds the temperature data base_dir = '/sys/bus/w1/devices/' device_folder = glob.glob(base_dir + '28*')[0] device_file = device_folder + '/w1_slave' # A function that reads the sensors data def read_temp_raw(): f = open(device_file, 'r') # Opens the temperature device file lines = f.readlines() # Returns the text f.close() return lines # Convert the value of the sensor into a temperature def read_temp(): lines = read_temp_raw() # Read the temperature 'device file' # While the first line does not contain 'YES', wait for 0.2s # and then read the device file again. while lines[0].strip()[-3:] != 'YES': time.sleep(0.1) lines = read_temp_raw() # Look for the position of the '=' in the second line of the # device file. equals_pos = lines[1].find('t=') # If the '=' is found, convert the rest of the line after the # '=' into degrees Celsius, then degrees Fahrenheit if equals_pos != -1: temp_string = lines[1][equals_pos+2:] temp_c = float(temp_string) / 1000.0 temp_f = temp_c * 9.0 / 5.0 + 32.0 return temp_c, temp_f print(read_temp()) read_temp() if temp_c >=20 and temp_f >=75: GPIO.setwarnings(False) #Select GPIO mode GPIO.setmode(GPIO.BCM) #Set buzzer - pin 23 as output buzzer=23 GPIO.setup(buzzer,GPIO.OUT) GPIO.output(buzzer,GPIO.HIGH) print("Beep") # Print out the temperature until the program is stopped. #while True: #print(read_temp()) #time.sleep(9)