Time differences and timedelta objects. datetime objects describe a point in time. If you want an object that refers to a span of time, or the difference between two points in time, you need a ...

When trying to make things work with the datetime module, most Python users have faced a point when we resort to guess-and-check until the errors go away. datetime is one of those APIs that seems ...

but the python datetime.time class doesn't seem to have defined arithmetic operators, nor does the datetime.timedelta. if there are methods for this, that's not obvious to me either: ...