class MaxMinThermometer(object):
"""
a maximum minimum thermometer which encapsulates (i.e. contains)
a thermometer and also stores min / max temperature data
"""
def __init__(self):
self.thermometer = Thermometer()
self.min = None
self.max = None
def get_measurement(self):
(temp, when) = self.thermometer.get_measurement()
self.update_max_min(temp)
return (temp, when)
def update_max_min(self, temp):
if self.min == None or self.min > temp:
self.min = temp
if self.max == None or self.max < temp:
self.max = temp
def reset_max_min(self):
self.min = None
self.max = None
def close(self):
self.thermometer.close()
from thermometer import Thermometer
thermometer = Thermometer()
for i in range(5):
temp, when = thermometer.get_measurement()
print("{} temperature = {} degrees".format(when.isoformat(), temp))
thermometer.close()
