Trying to figure out how to call temperature from DS18B20 to use in loop. Raspberry Pi

Hopefully someone can shed some insight for me on how to accomplish what I am trying to achieve. I set up a DS18B20 to take temperature readings, and I would like to use those reading in a while loop to control a servo. For now I would just like to be able to print the reading to screen and go from there. This is the code that works to print to screen:

import os
import glob
import time

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_file = device_folder + '/w1_slave'

def read_temp_raw():
    f = open(device_file, 'r')
    lines = f.readlines()
    f.close()
    return lines

def read_temp():
    lines = read_temp_raw()
    while lines[0].strip()[-3:] != 'YES':
        time.sleep(0.2)
        lines = read_temp_raw()
    equals_pos = lines[1].find('t=')
    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_f
    

while True:
    print(read_temp())
    time.sleep(1)

I can not seem to figure out how to use the information in if

import os
import glob
import time

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_file = device_folder + '/w1_slave'

def read_temp_raw():
    f = open(device_file, 'r')
    lines = f.readlines()
    f.close()
    return lines

def read_temp():
    lines = read_temp_raw()
    while lines[0].strip()[-3:] != 'YES':
        time.sleep(0.2)
        lines = read_temp_raw()
    equals_pos = lines[1].find('t=')
    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_f
    

while True:
    if read_temp > 80:
        print(read_temp())
        time.sleep(1)

I get TypeError: '>' not supported between instances of 'function' and 'int' I am really new to this and can not figure it out. I would like to use the readings from read_temp that is being monitored to perform an action if the temp gets above 80.

Any help would be greatly appreciated.