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import rrdtool
import os
class TempLog(object):
def __init__(self, name):
self.name = name
if not os.path.exists(self.name):
rrdtool.create(self.name, 'DS:temperature:GAUGE:600:U:U',
'RRA:AVERAGE:0.5:1:17280', # Keep 5min snapshots for the last two months
'RRA:AVERAGE:0.5:12:87660', # Keep 1h averages for 10 years (as if...)
)
def update(self, temperature):
rrdtool.update(self.name, 'N:%f' % temperature)
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