How to use the datetime.tzinfo function in DateTime

import six

from faker import Faker
from faker.providers.date_time import Provider as DatetimeProvider
from faker.providers.date_time.pl_PL import Provider as PlProvider
from faker.providers.date_time.ar_AA import Provider as ArProvider
from faker.providers.date_time.ar_EG import Provider as EgProvider
from faker.providers.date_time.hy_AM import Provider as HyAmProvider
from faker.providers.date_time.ta_IN import Provider as TaInProvider


def is64bit():
    return sys.maxsize > 2**32


class UTC(tzinfo):
    """
    UTC implementation taken from Python's docs.
    """

    def __repr__(self):
        return ""

    def utcoffset(self, dt):
        return timedelta(0)

    def tzname(self, dt):
        return "UTC"

    def dst(self, dt):
        return timedelta(0)

def test_get_tzinfo_options(self):
        options = get_tzinfo_options()
        self.assertTrue(len(options) > 0)

        for tzinfo in options:
            self.assertIsInstance(tzinfo(), datetime.tzinfo)

:return: the relative path
        :rtype: `basestring`
        """
        start_list = os.path.abspath(start).split(os.sep)
        path_list = os.path.abspath(path).split(os.sep)

        # Work out how much of the filepath is shared by start and path.
        i = len(os.path.commonprefix([start_list, path_list]))

        rel_list = [os.path.pardir] * (len(start_list) - i) + path_list[i:]
        return os.path.join(*rel_list)

ZERO = timedelta(0)


class FixedOffsetTimezone(tzinfo):
    """Fixed offset in minutes east from UTC."""

    def __init__(self, offset, name=None):
        self._offset = timedelta(minutes=offset)
        if name is None:
            name = 'Etc/GMT+%d' % offset
        self.zone = name

    def __str__(self):
        return self.zone

    def __repr__(self):
        return '' % (self.zone, self._offset)

    def utcoffset(self, dt):
        return self._offset

try:
    from functools import reduce
except ImportError:
    # reduce is available in functools starting with Python 2.6
    pass

try:
    from pytz import UTC
except ImportError:
    # pytz is optional, define own "UTC" timestamp
    # reference implementation from Python documentation
    from datetime import timedelta, tzinfo

    ZERO = timedelta(0)

    class UTC(tzinfo):
        """UTC"""

        def utcoffset(self, dt):
            return ZERO

        def tzname(self, dt):
            return "UTC"

        def dst(self, dt):
            return ZERO

        def _call__(self):
            return self

    UTC = UTC()

import sys
import os

relativedelta = None
parser = None
rrule = None

__all__ = ["tzutc", "tzoffset", "tzlocal", "tzfile", "tzrange",
           "tzstr", "tzical", "tzwin", "tzwinlocal", "gettz"]

tzwin, tzwinlocal = None, None

ZERO = datetime.timedelta(0)
EPOCHORDINAL = datetime.datetime.utcfromtimestamp(0).toordinal()

class tzutc(datetime.tzinfo):

    def utcoffset(self, dt):
        return ZERO
     
    def dst(self, dt):
        return ZERO

    def tzname(self, dt):
        return "UTC"

    def __eq__(self, other):
        return (isinstance(other, tzutc) or
                (isinstance(other, tzoffset) and other._offset == ZERO))

    def __ne__(self, other):
        return not self.__eq__(other)

def _build_tzinfo(self, tzinfos, tzname, tzoffset):
        if callable(tzinfos):
            tzdata = tzinfos(tzname, tzoffset)
        else:
            tzdata = tzinfos.get(tzname)
        # handle case where tzinfo is paased an options that returns None
        # eg tzinfos = {'BRST' : None}
        if isinstance(tzdata, datetime.tzinfo) or tzdata is None:
            tzinfo = tzdata
        elif isinstance(tzdata, text_type):
            tzinfo = tz.tzstr(tzdata)
        elif isinstance(tzdata, integer_types):
            tzinfo = tz.tzoffset(tzname, tzdata)
        return tzinfo

from datetime import datetime as DT
from datetime import timedelta
from datetime import tzinfo

def first_sunday_on_or_after(dt):
    days_to_go = 6 - dt.weekday()
    if days_to_go:
        dt += timedelta(days_to_go)
    return dt

DSTSTART_2007 = DT(1, 3, 8, 2)
DSTEND_2007 = DT(1, 11, 1, 1)
ZERO = timedelta(0)
HOUR = timedelta(hours=1)

class USTimeZone(tzinfo):

    def __init__(self, hours, reprname, stdname, dstname):
        self.stdoffset = timedelta(hours=hours)
        self.reprname = reprname
        self.stdname = stdname
        self.dstname = dstname

    def __repr__(self):
        return self.reprname

    def tzname(self, dt):
        if self.dst(dt):
            return self.dstname
        else:
            return self.stdname

location_el = p["location"]
        location = g15pythonlang.append_if_exists(location_el, "city", "")
        location = g15pythonlang.append_if_exists(location_el, "region", location)
        location = g15pythonlang.append_if_exists(location_el, "country", location)
        
        # Get current condition
        condition_el = p["condition"]
        wind_el = p["wind"] if "wind" in p else None
        
        # Observed date
        try:
            observed_datetime = datetime.datetime.strptime(condition_el["date"], "%a, %d %b %Y %H:%M %p %Z")
        except ValueError as v: 
            import email.utils
            dxt = email.utils.parsedate_tz(condition_el["date"])
            class TZ(datetime.tzinfo):
                def dst(self, dt):
                    return datetime.timedelta(0)
                
                def tzname(self, dt):
                    return dxt[9]
                
                def utcoffset(self, dt): return datetime.timedelta(seconds=dxt[9])
            observed_datetime = datetime.datetime(*dxt[:7],  tzinfo=TZ())
        
        # Forecasts (we only get 2 from yahoo)
        forecasts_el = p["forecasts"]
        forecasts = []
        today_low = None
        today_high = None
        for f in forecasts_el:        
            condition_code = g15pythonlang.to_int_or_none(f["code"])

def _safe_timezone(obj):
    # type: (Union[str, int, float, _datetime.tzinfo]) -> _Timezone
    """
    Creates a timezone instance
    from a string, Timezone, TimezoneInfo or integer offset.
    """
    if isinstance(obj, _Timezone):
        return obj

    if obj is None or obj == "local":
        return local_timezone()

    if isinstance(obj, (int, float)):
        obj = int(obj * 60 * 60)
    elif isinstance(obj, _datetime.tzinfo):
        # pytz
        if hasattr(obj, "localize"):
            obj = obj.zone
        else:
            offset = obj.utcoffset(None)

            if offset is None:
                offset = _datetime.timedelta(0)

            obj = int(offset.total_seconds())

    return timezone(obj)

def dst(self, dt):
        return ZERO

# A class capturing the platform's idea of local time.

import time as _time

STDOFFSET = timedelta(seconds = -_time.timezone)
if _time.daylight:
    DSTOFFSET = timedelta(seconds = -_time.altzone)
else:
    DSTOFFSET = STDOFFSET

DSTDIFF = DSTOFFSET - STDOFFSET

class LocalTimezone(tzinfo):

    def utcoffset(self, dt):
        if self._isdst(dt):
            return DSTOFFSET
        else:
            return STDOFFSET

    def dst(self, dt):
        if self._isdst(dt):
            return DSTDIFF
        else:
            return ZERO

    def tzname(self, dt):
        return _time.tzname[self._isdst(dt)]