get system boot time in minutes in python

main.py
import datetime

def get_boot_time():
    with open('/proc/stat', 'r') as f:
        for line in f:
            if line.startswith('btime'):
                boot_time = float(line.split()[1])
                return datetime.datetime.fromtimestamp(boot_time).strftime('%Y-%m-%d %H:%M:%S')

def get_uptime():
    with open('/proc/uptime', 'r') as f:
        uptime_seconds = float(f.readline().split()[0])
        return int(uptime_seconds // 60)

boot_time_str = get_boot_time()
boot_time = datetime.datetime.strptime(boot_time_str, '%Y-%m-%d %H:%M:%S')
now = datetime.datetime.now()
uptime_minutes = get_uptime()

minutes_since_boot = (now - boot_time).total_seconds() // 60
print("System boot time: {}".format(boot_time_str))
print("Minutes since boot: {}".format(minutes_since_boot))
print("Uptime in minutes: {}".format(uptime_minutes))
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