reports.py

"A Singleton Dictionary of Reported Events"
import time


class Reports():
    "A Singleton Dictionary of Reported Events"
    _reports: dict[int, tuple[float, str]] = {}  # Python 3.9
    # _reports = {}  # Python 3.8 or earlier
    _row_id = 0

    def __new__(cls):
        return cls

    @classmethod
    def get_history(cls) -> dict:
        "A method to retrieve all historic events"
        return cls._reports

    @classmethod
    def log_event(cls, event: str) -> bool:
        "A method to add a new event to the record"
        cls._reports[cls._row_id] = (time.time(), event)
        cls._row_id = cls._row_id + 1
        return True