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: /proc/thread-self/root/snap/lxd/current/lib/python3/dist-packages/ceph/ [ drwxr-xr-x ]
name : utils.py import datetime import re from typing import Optional def datetime_now() -> datetime.datetime: """ Return the current local date and time. :return: Returns an aware datetime object of the current date and time. """ return datetime.datetime.now(tz=datetime.timezone.utc) def datetime_to_str(dt: datetime.datetime) -> str: """ Convert a datetime object into a ISO 8601 string, e.g. '2019-04-24T17:06:53.039991Z'. :param dt: The datetime object to process. :return: Return a string representing the date in ISO 8601 (timezone=UTC). """ return dt.astimezone(tz=datetime.timezone.utc).strftime( '%Y-%m-%dT%H:%M:%S.%fZ') def str_to_datetime(string: str) -> datetime.datetime: """ Convert an ISO 8601 string into a datetime object. The following formats are supported: - 2020-03-03T09:21:43.636153304Z - 2020-03-03T15:52:30.136257504-0600 - 2020-03-03T15:52:30.136257504 :param string: The string to parse. :return: Returns an aware datetime object of the given date and time string. :raises: :exc:`~exceptions.ValueError` for an unknown datetime string. """ fmts = [ '%Y-%m-%dT%H:%M:%S.%f', '%Y-%m-%dT%H:%M:%S.%f%z' ] # In *all* cases, the 9 digit second precision is too much for # Python's strptime. Shorten it to 6 digits. p = re.compile(r'(\.[\d]{6})[\d]*') string = p.sub(r'\1', string) # Replace trailing Z with -0000, since (on Python 3.6.8) it # won't parse. if string and string[-1] == 'Z': string = string[:-1] + '-0000' for fmt in fmts: try: dt = datetime.datetime.strptime(string, fmt) # Make sure the datetime object is aware (timezone is set). # If not, then assume the time is in UTC. if dt.tzinfo is None: dt = dt.replace(tzinfo=datetime.timezone.utc) return dt except ValueError: pass raise ValueError("Time data {} does not match one of the formats {}".format( string, str(fmts))) def parse_timedelta(delta: str) -> Optional[datetime.timedelta]: """ Returns a timedelta object represents a duration, the difference between two dates or times. >>> parse_timedelta('foo') >>> parse_timedelta('2d') datetime.timedelta(days=2) >>> parse_timedelta("4w") datetime.timedelta(days=28) >>> parse_timedelta("5s") datetime.timedelta(seconds=5) >>> parse_timedelta("-5s") datetime.timedelta(days=-1, seconds=86395) :param delta: The string to process, e.g. '2h', '10d', '30s'. :return: The `datetime.timedelta` object or `None` in case of a parsing error. """ parts = re.match(r'(?P<seconds>-?\d+)s|' r'(?P<minutes>-?\d+)m|' r'(?P<hours>-?\d+)h|' r'(?P<days>-?\d+)d|' r'(?P<weeks>-?\d+)w$', delta, re.IGNORECASE) if not parts: return None parts = parts.groupdict() # type: ignore args = {name: int(param) for name, param in parts.items() if param} # type: ignore return datetime.timedelta(**args)