Given a start_date/stop_date and start_time/stop_date and a set of weekdays, returns all hourly time intervals in that range

get_time_slices

def get_time_slices(vars):
    slices = []
    nd = (vars.stop_date - vars.start_date).days
    weekdays = [k for k,name in enumerate('monday|tuesday|wednesday|thusrday|friday|saturday|sunday'.split('|')) if vars.get(name)]
    hours = vars.stop_time.hour - vars.start_time.hour
    for d in range(nd):
        day = vars.start_date + timedelta(days=d)
        if day.weekday() in weekdays:
            zero = datetime(day.year, day.month, day.day,
                            vars.start_time.hour,
                            vars.start_time.minute)
            for h in range(hours):
                start = zero + timedelta(seconds=3600*h)
                stop = start + timedelta(seconds=3600)
                slices.append((start, stop))
    return slices