GPS lib. Class...

class GPS:

    def __init__(self):
        #This sets up variables for useful commands.
        #This set is used to set the rate the GPS reports
        UPDATE_10_sec = b"$PMTK220,10000*2F\n" #Update Every 10 Seconds
        UPDATE_5_sec = b"$PMTK220,5000*1B\n"   #Update Every 5 Seconds
        UPDATE_1_sec = b"$PMTK220,1000*1F\n"   #Update Every One Second
        UPDATE_200_msec = b"$PMTK220,200*2C\n" #Update Every 200 Milliseconds
        #This set is used to set the rate the GPS takes measurements
        MEAS_10_sec = b"$PMTK300,10000,0,0,0,0*2C\n" #Measure every 10 seconds
        MEAS_5_sec = b"$PMTK300,5000,0,0,0,0*18\n"   #Measure every 5 seconds
        MEAS_1_sec = b"$PMTK300,1000,0,0,0,0*1C\n"   #Measure once a second
        MEAS_200_msec = b"$PMTK300,200,0,0,0,0*2F\n"  #Meaure 5 times a seconds
        #Set the Baud Rate of GPS
        BAUD_57600 = b"$PMTK251,57600*2C\n"       #Set Baud Rate at 57600
        BAUD_9600 = b"$PMTK251,9600*17\n"         #Set 9600 Baud Rate
        #Commands for which NMEA Sentences are sent
        ser.write(BAUD_57600.encode()
        sleep(1)
        ser.baudrate=57600
        GPRMC_ONLY = b"$PMTK314,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*29\n" #Send only the GPRMC Sentence
        GPRMC_GPGGA = b"$PMTK314,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*28\n"#Send GPRMC AND GPGGA Sentences
        SEND_ALL = b"$PMTK314,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0*28\n" #Send All Sentences
        SEND_NOTHING = b"$PMTK314,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*28\n" #Send Nothing
        ser.write(UPDATE_1_sec()
        sleep(1)
        ser.write(MEAS_1_sec()
        sleep(1)
        ser.write(GPRMC_GPGGA()
        sleep(1)
        ser.flushInput()
        ser.flushInput()