FM / python

/usr/lib/python3/dist-packages/twisted/python/

/usr/lib/python3/dist-packages/twisted/python

Name	Size	Mode	Actions
test/	-	0755	rm
_pydoctortemplates/	-	0755	rm
__pycache__/	-	0755	rm
compat.py	16931	0644	edit dl rm
components.py	14199	0644	edit dl rm
constants.py	513	0644	edit dl rm
context.py	4054	0644	edit dl rm
deprecate.py	27668	0644	edit dl rm
failure.py	27007	0644	edit dl rm
fakepwd.py	6732	0644	edit dl rm
filepath.py	54023	0644	edit dl rm
formmethod.py	12107	0644	edit dl rm
htmlizer.py	3626	0644	edit dl rm
lockfile.py	8026	0644	edit dl rm
log.py	22302	0644	edit dl rm
logfile.py	10119	0644	edit dl rm
modules.py	26715	0644	edit dl rm
monkey.py	2164	0644	edit dl rm
procutils.py	1371	0644	edit dl rm
randbytes.py	3459	0644	edit dl rm
rebuild.py	7122	0644	edit dl rm
reflect.py	20480	0644	edit dl rm
release.py	1104	0644	edit dl rm
roots.py	7178	0644	edit dl rm
runtime.py	5924	0644	edit dl rm
sendmsg.py	2682	0644	edit dl rm
shortcut.py	2302	0644	edit dl rm
syslog.py	3652	0644	edit dl rm
systemd.py	2987	0644	edit dl rm
text.py	5417	0644	edit dl rm
threadable.py	3327	0644	edit dl rm
threadpool.py	10203	0644	edit dl rm
twisted-completion.zsh	1371	0644	edit dl rm
url.py	244	0644	edit dl rm
urlpath.py	8447	0644	edit dl rm
usage.py	34577	0644	edit dl rm
util.py	27432	0644	edit dl rm
versions.py	273	0644	edit dl rm
win32.py	4794	0644	edit dl rm
zippath.py	9028	0644	edit dl rm
zipstream.py	9680	0644	edit dl rm
_appdirs.py	820	0644	edit dl rm
_inotify.py	3496	0644	edit dl rm
_pydoctor.py	6735	0644	edit dl rm
_release.py	18879	0644	edit dl rm
_shellcomp.py	25279	0644	edit dl rm
_textattributes.py	9097	0644	edit dl rm
_tzhelper.py	3128	0644	edit dl rm
_url.py	228	0644	edit dl rm
__init__.py	598	0644	edit dl rm

Edit: /usr/lib/python3/dist-packages/twisted/python/_tzhelper.py (3128B)

# -*- test-case-name: twisted.python.test.test_tzhelper -*-
# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

"""
Time zone utilities.
"""

from datetime import datetime as DateTime, timedelta as TimeDelta, tzinfo as TZInfo
from typing import Optional

__all__ = [
    "FixedOffsetTimeZone",
    "UTC",
]

class FixedOffsetTimeZone(TZInfo):
    """
    Represents a fixed timezone offset (without daylight saving time).

@ivar name: A L{str} giving the name of this timezone; the name just
        includes how much time this offset represents.

@ivar offset: A L{TimeDelta} giving the amount of time this timezone is
        offset.
    """

def __init__(self, offset: TimeDelta, name: Optional[str] = None) -> None:
        """
        Construct a L{FixedOffsetTimeZone} with a fixed offset.

@param offset: a delta representing the offset from UTC.
        @param name: A name to be given for this timezone.
        """
        self.offset = offset
        self.name = name

@classmethod
    def fromSignHoursMinutes(
        cls, sign: str, hours: int, minutes: int
    ) -> "FixedOffsetTimeZone":
        """
        Construct a L{FixedOffsetTimeZone} from an offset described by sign
        ('+' or '-'), hours, and minutes.

@note: For protocol compatibility with AMP, this method never uses 'Z'

@param sign: A string describing the positive or negative-ness of the
            offset.
        @param hours: The number of hours in the offset.
        @param minutes: The number of minutes in the offset

@return: A time zone with the given offset, and a name describing the
            offset.
        """
        name = "%s%02i:%02i" % (sign, hours, minutes)
        if sign == "-":
            hours = -hours
            minutes = -minutes
        elif sign != "+":
            raise ValueError(f"Invalid sign for timezone {sign!r}")
        return cls(TimeDelta(hours=hours, minutes=minutes), name)

@classmethod
    def fromLocalTimeStamp(cls, timeStamp: float) -> "FixedOffsetTimeZone":
        """
        Create a time zone with a fixed offset corresponding to a time stamp in
        the system's locally configured time zone.
        """
        offset = DateTime.fromtimestamp(timeStamp) - DateTime.utcfromtimestamp(
            timeStamp
        )
        return cls(offset)

def utcoffset(self, dt: Optional[DateTime]) -> TimeDelta:
        """
        Return the given timezone's offset from UTC.
        """
        return self.offset

def dst(self, dt: Optional[DateTime]) -> TimeDelta:
        """
        Return a zero L{TimeDelta} for the daylight saving time
        offset, since there is never one.
        """
        return TimeDelta(0)

def tzname(self, dt: Optional[DateTime]) -> str:
        """
        Return a string describing this timezone.
        """
        if self.name is not None:
            return self.name
        # XXX this is wrong; the tests are
        dt = DateTime.fromtimestamp(0, self)
        return dt.strftime("UTC%z")

UTC = FixedOffsetTimeZone.fromSignHoursMinutes("+", 0, 0)

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