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| from typing import List, NamedTuple
import sched
import time
import datetime
import random
def round_date_time_to_hour(date_time: datetime.datetime) -> datetime.datetime:
"""Round date_time to hour.
For example, round "2021-12-04 19:58:21.453642" to "2021-12-04 19:00:00".
Args:
date_time (datetime.datetime): datetime to be rounded.
Returns:
datetime.datetime: datetime rounded.
"""
time_tuple = date_time.timetuple()
rounded_time_tuple = time.struct_time((
time_tuple.tm_year,
time_tuple.tm_mon,
time_tuple.tm_mday,
time_tuple.tm_hour,
0,
0,
time_tuple.tm_wday,
time_tuple.tm_yday,
time_tuple.tm_isdst,
))
rounded_date_time = datetime.datetime.fromtimestamp(
time.mktime(rounded_time_tuple))
return rounded_date_time
def create_date_time_after_n_hours(date_time: datetime.datetime,
n: int) -> datetime.datetime:
"""Create the datetime after n hours comparing to the input datetime.
For example, round "2021-12-04 23:00:00" to "2021-12-05 00:00:00".
Args:
date_time (datetime.datetime): The input datetime.
n (int): The number of hours.
Returns:
datetime.datetime: The datetime n hours after the the input datetime.
"""
date_time_delta = datetime.timedelta(hours=n)
date_time_n_hours_later = date_time + date_time_delta
return date_time_n_hours_later
def run_every_one_rounded_hour_everyday() -> None:
"""Schedule to run action every one rounded hour for everyday.
For example, now the time is 14:32, the actions are scheduled to run
on everyday at 15:00, 16:00, 17:00, ...
"""
action_period = 1
fruits = ["apple", "banana", "cherry"]
scheduler = sched.scheduler(time.time, time.sleep)
now_date_time = datetime.datetime.now()
rounded_date_time = round_date_time_to_hour(date_time=now_date_time)
scheduled_date_time = create_date_time_after_n_hours(
date_time=rounded_date_time, n=action_period)
while True:
t = time.mktime(scheduled_date_time.timetuple())
scheduler.enterabs(time=t,
priority=1,
action=eat_fruit,
argument=(),
kwargs={
"fruit": random.choice(fruits),
})
print(f"Scheduled action to run at {scheduled_date_time}.")
scheduler.run()
print(f"The action to run at {scheduled_date_time} was completed at "
f"{datetime.datetime.now()}.")
scheduled_date_time = create_date_time_after_n_hours(
date_time=scheduled_date_time, n=action_period)
class ScheduledTime(NamedTuple):
hour: int
minute: int
second: int
def run_at_fixed_time_everyday(scheduled_times: List[ScheduledTime]) -> None:
"""Schedule to run action at fixed time everyday.
For example, the actions are scheduled to run on everyday
at 07:00, 12:00, 15:00.
Args:
scheduled_times (List[ScheduledTime]): A list of the scheduled time.
"""
fruits = ["apple", "banana", "cherry"]
scheduler = sched.scheduler(time.time, time.sleep)
def create_scheduled_date_times(
year: int, month: int, day: int,
scheduled_times: List[ScheduledTime]) -> List[datetime.datetime]:
scheduled_date_times = []
for scheduled_time in scheduled_times:
date_time = datetime.datetime(
year=year,
month=month,
day=day,
hour=scheduled_time.hour,
minute=scheduled_time.minute,
second=scheduled_time.second,
microsecond=0,
)
scheduled_date_times.append(date_time)
return scheduled_date_times
now_date_time = datetime.datetime.now()
scheduled_date_times = create_scheduled_date_times(
year=now_date_time.year,
month=now_date_time.month,
day=now_date_time.day,
scheduled_times=scheduled_times)
while True:
for scheduled_date_time in scheduled_date_times:
if scheduled_date_time > datetime.datetime.now():
t = time.mktime(scheduled_date_time.timetuple())
scheduler.enterabs(time=t,
priority=1,
action=eat_fruit,
argument=(),
kwargs={
"fruit": random.choice(fruits),
})
print(f"Scheduled action to run at {scheduled_date_time}.")
scheduler.run()
print(f"Scheduled actions completed.")
tomorrow_scheduled_date_times = [
create_date_time_after_n_hours(date_time=scheduled_date_time, n=24)
for scheduled_date_time in scheduled_date_times
]
scheduled_date_times = tomorrow_scheduled_date_times
def eat_fruit(fruit: str) -> None:
print(f"Eating {fruit} at {datetime.datetime.now()}.")
if __name__ == "__main__":
now_date_time = datetime.datetime.now()
planned_date_time = now_date_time + datetime.timedelta(minutes=1)
scheduled_time_1 = ScheduledTime(hour=planned_date_time.hour,
minute=planned_date_time.minute,
second=0)
scheduled_time_2 = ScheduledTime(hour=planned_date_time.hour,
minute=planned_date_time.minute,
second=10)
scheduled_time_3 = ScheduledTime(hour=planned_date_time.hour,
minute=planned_date_time.minute,
second=20)
scheduled_times = [scheduled_time_1, scheduled_time_2, scheduled_time_3]
run_at_fixed_time_everyday(scheduled_times=scheduled_times)
|