def first_sunday_on_or_after(dt):
days_to_go = 6 - dt.weekday()
if days_to_go:
dt += timedelta(days_to_go)
return dt
# US DST Rules
#
# This is a simplified (i.e., wrong for a few cases) set of rules for US
# DST start and end times. For a complete and up-to-date set of DST rules
# and timezone definitions, visit the Olson Database (or try pytz):
# http://www.twinsun.com/tz/tz-link.htm
# http://sourceforge.net/projects/pytz/ (might not be up-to-date)
#
# In the US, since 2007, DST starts at 2am (standard time) on the second
# Sunday in March, which is the first Sunday on or after Mar 8.
python类timezone()的实例源码
def Time2Internaldate(date_time):
"""'"DD-Mmm-YYYY HH:MM:SS +HHMM"' = Time2Internaldate(date_time)
Convert 'date_time' to IMAP4 INTERNALDATE representation."""
if isinstance(date_time, (int, float)):
tt = time.localtime(date_time)
elif isinstance(date_time, (tuple, time.struct_time)):
tt = date_time
elif isinstance(date_time, str) and (date_time[0],date_time[-1]) == ('"','"'):
return date_time # Assume in correct format
else:
raise ValueError("date_time not of a known type")
if time.daylight and tt[-1]:
zone = -time.altzone
else:
zone = -time.timezone
return ('"%2d-%s-%04d %02d:%02d:%02d %+03d%02d"' %
((tt[2], MonthNames[tt[1]], tt[0]) + tt[3:6] +
divmod(zone//60, 60)))
def dst(self, dt):
if dt is None or dt.tzinfo is None:
# An exception may be sensible here, in one or both cases.
# It depends on how you want to treat them. The default
# fromutc() implementation (called by the default astimezone()
# implementation) passes a datetime with dt.tzinfo is self.
return ZERO
assert dt.tzinfo is self
# Find first Sunday in April & the last in October.
start = first_sunday_on_or_after(DSTSTART.replace(year=dt.year))
end = first_sunday_on_or_after(DSTEND.replace(year=dt.year))
# Can't compare naive to aware objects, so strip the timezone from
# dt first.
if start <= dt.replace(tzinfo=None) < end:
return HOUR
else:
return ZERO
def localtime(value, timezone=None):
"""
Converts an aware datetime.datetime to local time.
Local time is defined by the current time zone, unless another time zone
is specified.
"""
if timezone is None:
timezone = get_current_timezone()
# If `value` is naive, astimezone() will raise a ValueError,
# so we don't need to perform a redundant check.
value = value.astimezone(timezone)
if hasattr(timezone, 'normalize'):
# This method is available for pytz time zones.
value = timezone.normalize(value)
return value
def make_aware(value, timezone=None, is_dst=None):
"""
Makes a naive datetime.datetime in a given time zone aware.
"""
if timezone is None:
timezone = get_current_timezone()
if hasattr(timezone, 'localize'):
# This method is available for pytz time zones.
return timezone.localize(value, is_dst=is_dst)
else:
# Check that we won't overwrite the timezone of an aware datetime.
if is_aware(value):
raise ValueError(
"make_aware expects a naive datetime, got %s" % value)
# This may be wrong around DST changes!
return value.replace(tzinfo=timezone)
def formatTime(self, when):
"""
Return the given UTC value formatted as a human-readable string
representing that time in the local timezone.
@type when: C{int}
@param when: POSIX timestamp to convert to a human-readable string.
@rtype: C{str}
"""
if self.timeFormat is not None:
return time.strftime(self.timeFormat, time.localtime(when))
tzOffset = -self.getTimezoneOffset()
when = datetime.datetime.utcfromtimestamp(when + tzOffset)
tzHour = int(tzOffset / 60 / 60)
tzMin = int(tzOffset / 60 % 60)
return '%d/%02d/%02d %02d:%02d %+03d%02d' % (
when.year, when.month, when.day,
when.hour, when.minute,
tzHour, tzMin)
def morsel_to_cookie(morsel):
"""Convert a Morsel object into a Cookie containing the one k/v pair."""
expires = None
if morsel['max-age']:
expires = time.time() + morsel['max-age']
elif morsel['expires']:
time_template = '%a, %d-%b-%Y %H:%M:%S GMT'
expires = time.mktime(
time.strptime(morsel['expires'], time_template)) - time.timezone
return create_cookie(
comment=morsel['comment'],
comment_url=bool(morsel['comment']),
discard=False,
domain=morsel['domain'],
expires=expires,
name=morsel.key,
path=morsel['path'],
port=None,
rest={'HttpOnly': morsel['httponly']},
rfc2109=False,
secure=bool(morsel['secure']),
value=morsel.value,
version=morsel['version'] or 0,
)
def dst(self, dt):
if dt is None or dt.tzinfo is None:
# An exception may be sensible here, in one or both cases.
# It depends on how you want to treat them. The default
# fromutc() implementation (called by the default astimezone()
# implementation) passes a datetime with dt.tzinfo is self.
return ZERO
assert dt.tzinfo is self
# Find first Sunday in April & the last in October.
start = first_sunday_on_or_after(DSTSTART.replace(year=dt.year))
end = first_sunday_on_or_after(DSTEND.replace(year=dt.year))
# Can't compare naive to aware objects, so strip the timezone from
# dt first.
if start <= dt.replace(tzinfo=None) < end:
return HOUR
else:
return ZERO
def morsel_to_cookie(morsel):
"""Convert a Morsel object into a Cookie containing the one k/v pair."""
expires = None
if morsel['max-age']:
expires = time.time() + morsel['max-age']
elif morsel['expires']:
time_template = '%a, %d-%b-%Y %H:%M:%S GMT'
expires = time.mktime(
time.strptime(morsel['expires'], time_template)) - time.timezone
return create_cookie(
comment=morsel['comment'],
comment_url=bool(morsel['comment']),
discard=False,
domain=morsel['domain'],
expires=expires,
name=morsel.key,
path=morsel['path'],
port=None,
rest={'HttpOnly': morsel['httponly']},
rfc2109=False,
secure=bool(morsel['secure']),
value=morsel.value,
version=morsel['version'] or 0,
)
def dst(self, dt):
if dt is None or dt.tzinfo is None:
# An exception may be sensible here, in one or both cases.
# It depends on how you want to treat them. The default
# fromutc() implementation (called by the default astimezone()
# implementation) passes a datetime with dt.tzinfo is self.
return ZERO
assert dt.tzinfo is self
# Find first Sunday in April & the last in October.
start = first_sunday_on_or_after(DSTSTART.replace(year=dt.year))
end = first_sunday_on_or_after(DSTEND.replace(year=dt.year))
# Can't compare naive to aware objects, so strip the timezone from
# dt first.
if start <= dt.replace(tzinfo=None) < end:
return HOUR
else:
return ZERO
def morsel_to_cookie(morsel):
"""Convert a Morsel object into a Cookie containing the one k/v pair."""
expires = None
if morsel['max-age']:
expires = time.time() + morsel['max-age']
elif morsel['expires']:
time_template = '%a, %d-%b-%Y %H:%M:%S GMT'
expires = time.mktime(
time.strptime(morsel['expires'], time_template)) - time.timezone
return create_cookie(
comment=morsel['comment'],
comment_url=bool(morsel['comment']),
discard=False,
domain=morsel['domain'],
expires=expires,
name=morsel.key,
path=morsel['path'],
port=None,
rest={'HttpOnly': morsel['httponly']},
rfc2109=False,
secure=bool(morsel['secure']),
value=morsel.value,
version=morsel['version'] or 0,
)
def morsel_to_cookie(morsel):
"""Convert a Morsel object into a Cookie containing the one k/v pair."""
expires = None
if morsel['max-age']:
expires = time.time() + morsel['max-age']
elif morsel['expires']:
time_template = '%a, %d-%b-%Y %H:%M:%S GMT'
expires = time.mktime(
time.strptime(morsel['expires'], time_template)) - time.timezone
return create_cookie(
comment=morsel['comment'],
comment_url=bool(morsel['comment']),
discard=False,
domain=morsel['domain'],
expires=expires,
name=morsel.key,
path=morsel['path'],
port=None,
rest={'HttpOnly': morsel['httponly']},
rfc2109=False,
secure=bool(morsel['secure']),
value=morsel.value,
version=morsel['version'] or 0,
)
def morsel_to_cookie(morsel):
"""Convert a Morsel object into a Cookie containing the one k/v pair."""
expires = None
if morsel['max-age']:
expires = time.time() + morsel['max-age']
elif morsel['expires']:
time_template = '%a, %d-%b-%Y %H:%M:%S GMT'
expires = time.mktime(
time.strptime(morsel['expires'], time_template)) - time.timezone
return create_cookie(
comment=morsel['comment'],
comment_url=bool(morsel['comment']),
discard=False,
domain=morsel['domain'],
expires=expires,
name=morsel.key,
path=morsel['path'],
port=None,
rest={'HttpOnly': morsel['httponly']},
rfc2109=False,
secure=bool(morsel['secure']),
value=morsel.value,
version=morsel['version'] or 0,
)
def get_time_string(status, options, format="%a %b %d %H:%M:%S +0000 %Y"):
timestamp = options["timestamp"]
datestamp = options["datestamp"]
t = time.strptime(status['created_at'], format)
i_hate_timezones = time.timezone
if time.daylight:
i_hate_timezones = time.altzone
dt = datetime.datetime(*t[:-3]) - datetime.timedelta(
seconds=i_hate_timezones)
t = dt.timetuple()
if timestamp and datestamp:
return time.strftime("%Y-%m-%d %H:%M:%S ", t)
elif timestamp:
return time.strftime("%H:%M:%S ", t)
elif datestamp:
return time.strftime("%Y-%m-%d ", t)
return ""
def _get_timezone_distance(self, offset):
'''
Return the distance between the local timezone and
the one with offset 'offset'.
:param offset: the distance of a timezone to GMT.
:type offset: int
:returns: distance between local offset and param offset.
:rtype: int
'''
timezones = range(-11, 13)
tz1 = offset
tz2 = self._local_offset
distance = abs(timezones.index(tz1) - timezones.index(tz2))
if distance > 12:
if tz1 < 0:
distance = timezones.index(tz1) + timezones[::-1].index(tz2)
else:
distance = timezones[::-1].index(tz1) + timezones.index(tz2)
return distance
def get_genTime_as_datetime(self):
"""
parses the genTime string and returns a datetime object;
it also adjusts the time according to local timezone, so that it is
compatible with other parts of the library
"""
year = int(self.genTime[:4])
month = int(self.genTime[4:6])
day = int(self.genTime[6:8])
hour = int(self.genTime[8:10])
minute = int(self.genTime[10:12])
second = int(self.genTime[12:14])
rest = self.genTime[14:].strip("Z")
if rest:
micro = int(float(rest)*1e6)
else:
micro = 0
tz_delta = datetime.timedelta(seconds=time.daylight and time.altzone
or time.timezone)
return datetime.datetime(year, month, day, hour, minute, second, micro) - tz_delta
def __repr__(self):
"""Convert to formal string, for repr().
>>> dt = datetime(2010, 1, 1)
>>> repr(dt)
'datetime.datetime(2010, 1, 1, 0, 0)'
>>> dt = datetime(2010, 1, 1, tzinfo=timezone.utc)
>>> repr(dt)
'datetime.datetime(2010, 1, 1, 0, 0, tzinfo=datetime.timezone.utc)'
"""
return "%s(%d, %d, %d)" % ('datetime.' + self.__class__.__name__,
self._year,
self._month,
self._day)
# XXX These shouldn't depend on time.localtime(), because that
# clips the usable dates to [1970 .. 2038). At least ctime() is
# easily done without using strftime() -- that's better too because
# strftime("%c", ...) is locale specific.
def __sub__(self, other):
"Subtract two datetimes, or a datetime and a timedelta."
if not isinstance(other, datetime):
if isinstance(other, timedelta):
return self + -other
return NotImplemented
days1 = self.toordinal()
days2 = other.toordinal()
secs1 = self._second + self._minute * 60 + self._hour * 3600
secs2 = other._second + other._minute * 60 + other._hour * 3600
base = timedelta(days1 - days2,
secs1 - secs2,
self._microsecond - other._microsecond)
if self._tzinfo is other._tzinfo:
return base
myoff = self.utcoffset()
otoff = other.utcoffset()
if myoff == otoff:
return base
if myoff is None or otoff is None:
raise TypeError("cannot mix naive and timezone-aware time")
return base + otoff - myoff
def __repr__(self):
"""Convert to formal string, for repr().
>>> tz = timezone.utc
>>> repr(tz)
'datetime.timezone.utc'
>>> tz = timezone(timedelta(hours=-5), 'EST')
>>> repr(tz)
"datetime.timezone(datetime.timedelta(-1, 68400), 'EST')"
"""
if self is self.utc:
return 'datetime.timezone.utc'
if self._name is None:
return "%s(%r)" % ('datetime.' + self.__class__.__name__,
self._offset)
return "%s(%r, %r)" % ('datetime.' + self.__class__.__name__,
self._offset, self._name)
def format_datetime(dt, usegmt=False):
"""Turn a datetime into a date string as specified in RFC 2822.
If usegmt is True, dt must be an aware datetime with an offset of zero. In
this case 'GMT' will be rendered instead of the normal +0000 required by
RFC2822. This is to support HTTP headers involving date stamps.
"""
now = dt.timetuple()
if usegmt:
if dt.tzinfo is None or dt.tzinfo != datetime.timezone.utc:
raise ValueError("usegmt option requires a UTC datetime")
zone = 'GMT'
elif dt.tzinfo is None:
zone = '-0000'
else:
zone = dt.strftime("%z")
return _format_timetuple_and_zone(now, zone)
def __init__(self, dt):
if not isinstance(dt, (datetime, date, timedelta, time)):
raise ValueError('You must use datetime, date, timedelta or time')
if isinstance(dt, datetime):
self.params = Parameters({'value': 'DATE-TIME'})
elif isinstance(dt, date):
self.params = Parameters({'value': 'DATE'})
elif isinstance(dt, time):
self.params = Parameters({'value': 'TIME'})
if (isinstance(dt, datetime) or isinstance(dt, time))\
and getattr(dt, 'tzinfo', False):
tzinfo = dt.tzinfo
if tzinfo is not pytz.utc and\
(tzutc is None or not isinstance(tzinfo, tzutc)):
# set the timezone as a parameter to the property
tzid = tzid_from_dt(dt)
if tzid:
self.params.update({'TZID': tzid})
self.dt = dt
def from_ical(cls, ical, timezone=None):
if isinstance(ical, cls):
return ical.dt
u = ical.upper()
if u.startswith(('P', '-P', '+P')):
return vDuration.from_ical(ical)
if len(ical) in (15, 16):
return vDatetime.from_ical(ical, timezone=timezone)
elif len(ical) == 8:
return vDate.from_ical(ical)
elif len(ical) in (6, 7):
return vTime.from_ical(ical)
else:
raise ValueError(
"Expected datetime, date, or time, got: '%s'" % ical
)
def Start():
getLatestVersion()
Log.Info("***{0} starting Python Version {1} TimeZone {2} PluginVersion {3}".format(NAME, sys.version, time.timezone, PLUGIN_VERSION))
loginResult = SmoothAuth.login()
scheduleResult = SmoothUtils.GetScheduleJson()
if Dict['SPassW'] is None:
Log.Info('Bad login here, need to display it')
ObjectContainer.title1 = NAME + " - Enter Login Details ->"
ObjectContainer.art = R(ART)
else:
ObjectContainer.title1 = NAME
ObjectContainer.art = R(ART)
DirectoryObject.thumb = R("Smoothstreams-network.png")
HTTP.Headers['User-agent'] = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:22.0) Gecko/20100101 Firefox/22.0'
####################################################################################################
def dst(self, dt):
if dt is None or dt.tzinfo is None:
# An exception may be sensible here, in one or both cases.
# It depends on how you want to treat them. The default
# fromutc() implementation (called by the default astimezone()
# implementation) passes a datetime with dt.tzinfo is self.
return ZERO
assert dt.tzinfo is self
# Find first Sunday in April & the last in October.
start = first_sunday_on_or_after(DSTSTART.replace(year=dt.year))
end = first_sunday_on_or_after(DSTEND.replace(year=dt.year))
# Can't compare naive to aware objects, so strip the timezone from
# dt first.
if start <= dt.replace(tzinfo=None) < end:
return HOUR
else:
return ZERO
def morsel_to_cookie(morsel):
"""Convert a Morsel object into a Cookie containing the one k/v pair."""
expires = None
if morsel['max-age']:
expires = time.time() + morsel['max-age']
elif morsel['expires']:
time_template = '%a, %d-%b-%Y %H:%M:%S GMT'
expires = time.mktime(
time.strptime(morsel['expires'], time_template)) - time.timezone
return create_cookie(
comment=morsel['comment'],
comment_url=bool(morsel['comment']),
discard=False,
domain=morsel['domain'],
expires=expires,
name=morsel.key,
path=morsel['path'],
port=None,
rest={'HttpOnly': morsel['httponly']},
rfc2109=False,
secure=bool(morsel['secure']),
value=morsel.value,
version=morsel['version'] or 0,
)
def dst(self, dt):
if dt is None or dt.tzinfo is None:
# An exception may be sensible here, in one or both cases.
# It depends on how you want to treat them. The default
# fromutc() implementation (called by the default astimezone()
# implementation) passes a datetime with dt.tzinfo is self.
return ZERO
assert dt.tzinfo is self
# Find first Sunday in April & the last in October.
start = first_sunday_on_or_after(DSTSTART.replace(year=dt.year))
end = first_sunday_on_or_after(DSTEND.replace(year=dt.year))
# Can't compare naive to aware objects, so strip the timezone from
# dt first.
if start <= dt.replace(tzinfo=None) < end:
return HOUR
else:
return ZERO
def test_pickling_subclass(self):
# Make sure we can pickle/unpickle an instance of a subclass.
offset = timedelta(minutes=-300)
for otype, args in [
(PicklableFixedOffset, (offset, 'cookie')),
(timezone, (offset,)),
(timezone, (offset, "EST"))]:
orig = otype(*args)
oname = orig.tzname(None)
self.assertIsInstance(orig, tzinfo)
self.assertIs(type(orig), otype)
self.assertEqual(orig.utcoffset(None), offset)
self.assertEqual(orig.tzname(None), oname)
for pickler, unpickler, proto in pickle_choices:
green = pickler.dumps(orig, proto)
derived = unpickler.loads(green)
self.assertIsInstance(derived, tzinfo)
self.assertIs(type(derived), otype)
self.assertEqual(derived.utcoffset(None), offset)
self.assertEqual(derived.tzname(None), oname)
def dst(self, dt):
if dt is None or dt.tzinfo is None:
# An exception instead may be sensible here, in one or more of
# the cases.
return ZERO
assert dt.tzinfo is self
# Find first Sunday in April.
start = first_sunday_on_or_after(DSTSTART.replace(year=dt.year))
assert start.weekday() == 6 and start.month == 4 and start.day <= 7
# Find last Sunday in October.
end = first_sunday_on_or_after(DSTEND.replace(year=dt.year))
assert end.weekday() == 6 and end.month == 10 and end.day >= 25
# Can't compare naive to aware objects, so strip the timezone from
# dt first.
if start <= dt.replace(tzinfo=None) < end:
return HOUR
else:
return ZERO
def morsel_to_cookie(morsel):
"""Convert a Morsel object into a Cookie containing the one k/v pair."""
expires = None
if morsel['max-age']:
expires = time.time() + morsel['max-age']
elif morsel['expires']:
time_template = '%a, %d-%b-%Y %H:%M:%S GMT'
expires = time.mktime(
time.strptime(morsel['expires'], time_template)) - time.timezone
return create_cookie(
comment=morsel['comment'],
comment_url=bool(morsel['comment']),
discard=False,
domain=morsel['domain'],
expires=expires,
name=morsel.key,
path=morsel['path'],
port=None,
rest={'HttpOnly': morsel['httponly']},
rfc2109=False,
secure=bool(morsel['secure']),
value=morsel.value,
version=morsel['version'] or 0,
)
def morsel_to_cookie(morsel):
"""Convert a Morsel object into a Cookie containing the one k/v pair."""
expires = None
if morsel['max-age']:
expires = time.time() + morsel['max-age']
elif morsel['expires']:
time_template = '%a, %d-%b-%Y %H:%M:%S GMT'
expires = time.mktime(
time.strptime(morsel['expires'], time_template)) - time.timezone
return create_cookie(
comment=morsel['comment'],
comment_url=bool(morsel['comment']),
discard=False,
domain=morsel['domain'],
expires=expires,
name=morsel.key,
path=morsel['path'],
port=None,
rest={'HttpOnly': morsel['httponly']},
rfc2109=False,
secure=bool(morsel['secure']),
value=morsel.value,
version=morsel['version'] or 0,
)
