import datetime
import math

class Py3status:

    def uptime(self):
        with open('/proc/uptime') as f:
            secs = float(f.read().split()[0])
        t = datetime.timedelta(seconds=math.floor(secs))
        if t.days >= 1:
            r = str(t).split(',')[0]
        else:
            r = str(t).rsplit(':', 1)[0]
        return {'full_text': r, 'cached_until': self.py3.time_in(60)}