21 lines
620 B
Python
21 lines
620 B
Python
from datetime import datetime
|
|
from typing import Optional
|
|
|
|
from .scheduler import UTC_ZERO
|
|
from .virtualtimescheduler import VirtualTimeScheduler
|
|
|
|
|
|
class HistoricalScheduler(VirtualTimeScheduler):
|
|
"""Provides a virtual time scheduler that uses datetime for absolute time
|
|
and timedelta for relative time."""
|
|
|
|
def __init__(self, initial_clock: Optional[datetime] = None) -> None:
|
|
"""Creates a new historical scheduler with the specified initial clock
|
|
value.
|
|
|
|
Args:
|
|
initial_clock: Initial value for the clock.
|
|
"""
|
|
|
|
super().__init__(initial_clock or UTC_ZERO)
|