def __init__(self):
"""Takes in the file name of a file created by the NI temperature
logger program and generates a Temp_log object."""
self.units = None
self.temp_collection = SortedCollection([],lambda x:x[0])
def addFile(self,fname):
"""Adds the data from a file to this log """
(tmp,units) = self._parseFile(fname)
if (self.units is not None) and (units != self.units):
print units
print self.units
raise Exception('units must match')
tmp.extend(self.temp_collection._items)
self.temp_collection = SortedCollection(tmp,self.temp_collection._getkey())
