Supply a date/time string in a stated format with datetime.strptime(). (More on this soon.) All of these return a new datetime object, with the date and time information encoded into it as properties.

Python Enhancement Proposal (PEP) 751, accepted March 31, aims to create a new file format for specifying dependencies that is machine-generated and human-readable.

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: ...