def __add__(self,o):
other = Duration(o,"DURATION")
if not other.valid():
return Duration(0,"DURATION")
seconds = self.utc_seconds() + other.seconds()
new = Time(seconds,self.name(),self.timezone())
return new
def __add__(self, o):
other = Duration(o, "DURATION")
if not other.valid():
return Duration(0, "DURATION")
print self.utc_seconds(), other.seconds()
seconds = self.utc_seconds() + other.seconds()
new = Time(seconds, self.name(), self.timezone())
return new
def __sub__(self, o):
if isinstance(o, Time):
# Subtract a time from this time and return a duration
seconds = self.utc_seconds() - o.utc_seconds()
return Duration(seconds)
elif isinstance(o, Duration):
# Subtract a duration from this time and return a time
other = Duration(o)
if (not other.valid()):
return Time()
seconds = self.utc_seconds() - other.seconds()
return Time(seconds)
else:
raise TypeError, "subtraction with Time reqires Time or Duration"
def __sub__(self,o):
if isinstance(o,Time):
# Subtract a time from this time and return a duration
seconds = self.utc_seconds() - other.utc_seconds()
return Duration(seconds)
elif isinstance(o,Duration):
# Subtract a duration from this time and return a time
other = Duration(o)
if(not other.valid()):
return Time()
seconds = self.utc_seconds() - other.seconds()
return Time(seconds)
else:
raise TypeError, "subtraction with Time reqires Time or Duration"
#!/usr/bin/env python
