Automation, sensing and robotics • Extract specific variable from this code

Code:

import osimport globimport time# These  lines mount the device:os.system('modprobe w1-gpio')os.system('modprobe w1-therm') base_dir = '/sys/bus/w1/devices/'device_folder = glob.glob(base_dir + '28*')[0]device_folder1 = glob.glob(base_dir + '28*')[1]device_folder2 = glob.glob(base_dir + '28*')[2]device_file = device_folder + '/w1_slave'device_file1 = device_folder1 + '/w1_slave'device_file2 = device_folder2 + '/w1_slave'def read_rom():    name_file = device_folder+'/name'    f = open(name_file,'r')    #print('f:',f)    return f.readline()def read_rom1():    name_file1 = device_folder1+'/name'    g = open(name_file1,'r')    #print('g:',g)    return g.readline()def read_rom2():    name_file2 = device_folder2+'/name'    h = open(name_file2,'r')    #print('h:',h)    return h.readline() def read_temp_raw():    f = open(device_file, 'r')    lines = f.readlines()    #print('raw_f',lines)    f.close()    return linesdef read_temp_raw1():    g = open(device_file1, 'r')    lines1 = g.readlines()    #print('raw_g',lines1)    g.close()    return lines1def read_temp_raw2():    h = open(device_file2, 'r')    lines2 = h.readlines()    #print('raw_h',lines2)    h.close()    return lines2def read_temp():    lines = read_temp_raw()    while lines[1].strip()[-3:] != 'YES':        lines = read_temp_raw()        equals_pos = lines[1].find('t=')        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_fdef read_temp1():    lines1 = read_temp_raw1()    while lines1[1].strip()[-3:] != 'YES':        lines1 = read_temp_raw1()        equals_pos1 = lines1[1].find('t=')        temp_string1 = lines1[1][equals_pos1 +2:]        temp_c1 = float(temp_string1) / 1000.0        temp_f1 = temp_c1 * 9.0 / 5.0 + 32.0        return temp_c1, temp_f1def read_temp2():    lines2 = read_temp_raw2()    while lines2[1].strip()[-3:] != 'YES':        lines2 = read_temp_raw2()        equals_pos2 = lines2[1].find('t=')        temp_string2 = lines2[1][equals_pos2 +2:]        temp_c2 = float(temp_string2) / 1000.0        temp_f2 = temp_c2 * 9.0 / 5.0 + 32.0        return temp_c2, temp_f2while True:    #READING TEMPERATURE DATA AND PRINTINTING THE VALUES OF INDIVIDUAL SENSOR    print(' C1=%3.3f  F1=%3.3f'% read_temp())    print(' C2=%3.3f  F2=%3.3f'% read_temp1())    print(' C3=%3.3f  F3=%3.3f'% read_temp2())