(self, now=None)
return (now - self.time_created).seconds
Returns an integer which is the difference in seconds from
        'now' to when this circuit was created.

        Returns None if there is no created-time.
Returns an integer which is the difference in seconds from
        'now' to when this circuit was created.
Returns an integer which is the difference in seconds from now to when this circuit was created .
def age(self, now=None):
        """
        Returns an integer which is the difference in seconds from
        'now' to when this circuit was created.

        Returns None if there is no created-time.
        """
        if not self.time_created:
            return None
        if now is None:
            now = datetime.utcnow()
        return (now - self.time_created).seconds
def age ( self , now = None ) : if not self . time_created : return None if now is None : now = datetime . utcnow ( ) return ( now - self . time_created ) . seconds