def memorized_timedelta(seconds):
'''Create only one instance of each distinct timedelta'''
try:
return _timedelta_cache[seconds]
except KeyError:
delta = timedelta(seconds=seconds)
_timedelta_cache[seconds] = delta
return delta
def update_headers(self, response):
headers = {}
if "expires" not in response.headers:
date = parsedate(response.headers["date"])
expires = expire_after(timedelta(days=1), date=datetime(*date[:6]))
headers["expires"] = datetime_to_header(expires)
headers["cache-control"] = "public"
return headers
def test_interfaces(self):
verifyObject(ITimeDelta, timedelta(minutes=20))
verifyObject(IDate, date(2000, 1, 2))
verifyObject(IDateTime, datetime(2000, 1, 2, 10, 20))
verifyObject(ITime, time(20, 30, 15, 1234))
verifyObject(ITZInfo, tzinfo())
verifyClass(ITimeDeltaClass, timedelta)
verifyClass(IDateClass, date)
verifyClass(IDateTimeClass, datetime)
verifyClass(ITimeClass, time)
def memorized_datetime(seconds):
'''Create only one instance of each distinct datetime'''
try:
return _datetime_cache[seconds]
except KeyError:
# NB. We can't just do datetime.utcfromtimestamp(seconds) as this
# fails with negative values under Windows (Bug #90096)
dt = _epoch + timedelta(seconds=seconds)
_datetime_cache[seconds] = dt
return dt
def __init__(self):
self._content = False
self._content_consumed = False
self._next = None
#: Integer Code of responded HTTP Status, e.g. 404 or 200.
self.status_code = None
#: Case-insensitive Dictionary of Response Headers.
#: For example, ``headers['content-encoding']`` will return the
#: value of a ``'Content-Encoding'`` response header.
self.headers = CaseInsensitiveDict()
#: File-like object representation of response (for advanced usage).
#: Use of ``raw`` requires that ``stream=True`` be set on the request.
#: This requirement does not apply for use internally to Requests.
self.raw = None
#: Final URL location of Response.
self.url = None
#: Encoding to decode with when accessing r.text.
self.encoding = None
#: A list of :class:`Response <Response>` objects from
#: the history of the Request. Any redirect responses will end
#: up here. The list is sorted from the oldest to the most recent request.
self.history = []
#: Textual reason of responded HTTP Status, e.g. "Not Found" or "OK".
self.reason = None
#: A CookieJar of Cookies the server sent back.
self.cookies = cookiejar_from_dict({})
#: The amount of time elapsed between sending the request
#: and the arrival of the response (as a timedelta).
#: This property specifically measures the time taken between sending
#: the first byte of the request and finishing parsing the headers. It
#: is therefore unaffected by consuming the response content or the
#: value of the ``stream`` keyword argument.
self.elapsed = date.timedelta(0)
#: The :class:`PreparedRequest <PreparedRequest>` object to which this
#: is a response.
self.request = None
def send(self, request, **kwargs):
"""Send a given PreparedRequest.
:rtype: requests.Response
"""
# Set defaults that the hooks can utilize to ensure they always have
# the correct parameters to reproduce the previous request.
kwargs.setdefault('stream', self.stream)
kwargs.setdefault('verify', self.verify)
kwargs.setdefault('cert', self.cert)
kwargs.setdefault('proxies', self.proxies)
# It's possible that users might accidentally send a Request object.
# Guard against that specific failure case.
if isinstance(request, Request):
raise ValueError('You can only send PreparedRequests.')
# Set up variables needed for resolve_redirects and dispatching of hooks
allow_redirects = kwargs.pop('allow_redirects', True)
stream = kwargs.get('stream')
hooks = request.hooks
# Get the appropriate adapter to use
adapter = self.get_adapter(url=request.url)
# Start time (approximately) of the request
start = preferred_clock()
# Send the request
r = adapter.send(request, **kwargs)
# Total elapsed time of the request (approximately)
elapsed = preferred_clock() - start
r.elapsed = timedelta(seconds=elapsed)
# Response manipulation hooks
r = dispatch_hook('response', hooks, r, **kwargs)
# Persist cookies
if r.history:
# If the hooks create history then we want those cookies too
for resp in r.history:
extract_cookies_to_jar(self.cookies, resp.request, resp.raw)
extract_cookies_to_jar(self.cookies, request, r.raw)
# Resolve redirects if allowed.
if allow_redirects:
# Redirect resolving generator.
gen = self.resolve_redirects(r, request, **kwargs)
history = [resp for resp in gen]
else:
history = []
# Shuffle things around if there's history.
if history:
# Insert the first (original) request at the start
history.insert(0, r)
# Get the last request made
r = history.pop()
r.history = history
# If redirects aren't being followed, store the response on the Request for Response.next().
if not allow_redirects:
try:
r._next = next(
self.resolve_redirects(r,
request,
yield_requests=True,
**kwargs))
except StopIteration:
pass
if not stream:
r.content
return r
def __init__(self, hours, reprname, stdname, dstname):
self.stdoffset = timedelta(hours=hours)
self.reprname = reprname
self.stdname = stdname
self.dstname = dstname
def first_sunday_on_or_after(dt):
days_to_go = 6 - dt.weekday()
if days_to_go:
dt += timedelta(days_to_go)
return dt
def __init__(self, offset, name):
self.__offset = timedelta(minutes=offset)
self.__name = name
self.__offset = timedelta(minutes=offset)
self.__name = name
def utcoffset(self, dt):
return self.__offset
def tzname(self, dt):
return self.__name
def dst(self, dt):
return ZERO
import time as _time
STDOFFSET = timedelta(seconds=-_time.timezone)
if _time.daylight:
DSTOFFSET = timedelta(seconds=-_time.altzone)
else:
DSTOFFSET = STDOFFSET
DSTDIFF = DSTOFFSET - STDOFFSET
# A class capturing the platform's idea of local time.
class LocalTimezone(tzinfo):
def utcoffset(self, dt):
if self._isdst(dt):
return DSTOFFSET
else:
return STDOFFSET
def utcoffset(self, dt):
return self._sign * timedelta(hours=self._hours, minutes=self._minutes)
def localize(self, dt, is_dst=False):
'''Convert naive time to local time.
This method should be used to construct localtimes, rather
than passing a tzinfo argument to a datetime constructor.
is_dst is used to determine the correct timezone in the ambigous
period at the end of daylight saving time.
>>> from pytz import timezone
>>> fmt = '%Y-%m-%d %H:%M:%S %Z (%z)'
>>> amdam = timezone('Europe/Amsterdam')
>>> dt = datetime(2004, 10, 31, 2, 0, 0)
>>> loc_dt1 = amdam.localize(dt, is_dst=True)
>>> loc_dt2 = amdam.localize(dt, is_dst=False)
>>> loc_dt1.strftime(fmt)
'2004-10-31 02:00:00 CEST (+0200)'
>>> loc_dt2.strftime(fmt)
'2004-10-31 02:00:00 CET (+0100)'
>>> str(loc_dt2 - loc_dt1)
'1:00:00'
Use is_dst=None to raise an AmbiguousTimeError for ambiguous
times at the end of daylight saving time
>>> try:
... loc_dt1 = amdam.localize(dt, is_dst=None)
... except AmbiguousTimeError:
... print('Ambiguous')
Ambiguous
is_dst defaults to False
>>> amdam.localize(dt) == amdam.localize(dt, False)
True
is_dst is also used to determine the correct timezone in the
wallclock times jumped over at the start of daylight saving time.
>>> pacific = timezone('US/Pacific')
>>> dt = datetime(2008, 3, 9, 2, 0, 0)
>>> ploc_dt1 = pacific.localize(dt, is_dst=True)
>>> ploc_dt2 = pacific.localize(dt, is_dst=False)
>>> ploc_dt1.strftime(fmt)
'2008-03-09 02:00:00 PDT (-0700)'
>>> ploc_dt2.strftime(fmt)
'2008-03-09 02:00:00 PST (-0800)'
>>> str(ploc_dt2 - ploc_dt1)
'1:00:00'
Use is_dst=None to raise a NonExistentTimeError for these skipped
times.
>>> try:
... loc_dt1 = pacific.localize(dt, is_dst=None)
... except NonExistentTimeError:
... print('Non-existent')
Non-existent
'''
if dt.tzinfo is not None:
raise ValueError('Not naive datetime (tzinfo is already set)')
# Find the two best possibilities.
possible_loc_dt = set()
for delta in [timedelta(days=-1), timedelta(days=1)]:
loc_dt = dt + delta
idx = max(0, bisect_right(self._utc_transition_times, loc_dt) - 1)
inf = self._transition_info[idx]
tzinfo = self._tzinfos[inf]
loc_dt = tzinfo.normalize(dt.replace(tzinfo=tzinfo))
if loc_dt.replace(tzinfo=None) == dt:
possible_loc_dt.add(loc_dt)
if len(possible_loc_dt) == 1:
return possible_loc_dt.pop()
# If there are no possibly correct timezones, we are attempting
# to convert a time that never happened - the time period jumped
# during the start-of-DST transition period.
if len(possible_loc_dt) == 0:
# If we refuse to guess, raise an exception.
if is_dst is None:
raise NonExistentTimeError(dt)
# If we are forcing the pre-DST side of the DST transition, we
# obtain the correct timezone by winding the clock forward a few
# hours.
elif is_dst:
return self.localize(dt + timedelta(hours=6),
is_dst=True) - timedelta(hours=6)
# If we are forcing the post-DST side of the DST transition, we
# obtain the correct timezone by winding the clock back.
else:
return self.localize(dt - timedelta(hours=6),
is_dst=False) + timedelta(hours=6)
# If we get this far, we have multiple possible timezones - this
# is an ambiguous case occuring during the end-of-DST transition.
# If told to be strict, raise an exception since we have an
# ambiguous case
if is_dst is None:
raise AmbiguousTimeError(dt)
# Filter out the possiblilities that don't match the requested
# is_dst
filtered_possible_loc_dt = [
p for p in possible_loc_dt if bool(p.tzinfo._dst) == is_dst
]
# Hopefully we only have one possibility left. Return it.
if len(filtered_possible_loc_dt) == 1:
return filtered_possible_loc_dt[0]
if len(filtered_possible_loc_dt) == 0:
filtered_possible_loc_dt = list(possible_loc_dt)
# If we get this far, we have in a wierd timezone transition
# where the clocks have been wound back but is_dst is the same
# in both (eg. Europe/Warsaw 1915 when they switched to CET).
# At this point, we just have to guess unless we allow more
# hints to be passed in (such as the UTC offset or abbreviation),
# but that is just getting silly.
#
# Choose the earliest (by UTC) applicable timezone if is_dst=True
# Choose the latest (by UTC) applicable timezone if is_dst=False
# i.e., behave like end-of-DST transition
dates = {} # utc -> local
for local_dt in filtered_possible_loc_dt:
utc_time = (local_dt.replace(tzinfo=None) -
local_dt.tzinfo._utcoffset)
assert utc_time not in dates
dates[utc_time] = local_dt
return dates[[min, max][not is_dst](dates)]
import cPickle as pickle
PY3K = False
try:
__file__
except NameError:
f = sys.argv[0]
else:
f = __file__
IS_PYPY = getattr(platform, 'python_implementation', lambda: None)() == 'PyPy'
DATADIR = os.path.dirname(os.path.abspath(f))
del f
ZERO = timedelta(0)
class FixedOffset(tzinfo):
"""Fixed offset in minutes east from UTC."""
def __init__(self, offset, name):
self.__offset = timedelta(minutes=offset)
self.__name = name
def utcoffset(self, dt):
return self.__offset
def tzname(self, dt):
return self.__name
def dst(self, dt):
def __init__(self, minutes):
if abs(minutes) >= 1440:
raise ValueError("absolute offset is too large", minutes)
self._minutes = minutes
self._offset = date.timedelta(minutes=minutes)
return zone.replace('_plus_', '+').replace('_minus_', '-')
_all_timezones_lower_to_standard = None
def _case_insensitive_zone_lookup(zone):
"""case-insensitively matching timezone, else return zone unchanged"""
global _all_timezones_lower_to_standard
if _all_timezones_lower_to_standard is None:
_all_timezones_lower_to_standard = dict(
(tz.lower(), tz) for tz in all_timezones) # noqa
return _all_timezones_lower_to_standard.get(zone.lower()) or zone # noqa
ZERO = date.timedelta(0)
HOUR = date.timedelta(hours=1)
class UTC(BaseTzInfo):
"""UTC
Optimized UTC implementation. It unpickles using the single module global
instance defined beneath this class declaration.
"""
zone = "UTC"
_utcoffset = ZERO
_dst = ZERO
_tzname = zone
def eta_td(self):
return timedelta(seconds=self.eta)
def __init__(self, **kw):
self.delta = timedelta(**kw)
def elapsed_td(self):
return timedelta(seconds=self.elapsed)
def dst(self, dt):
return timedelta(0)
import date
import sys
import struct
PY2 = sys.version_info[0] == 2
if PY2:
int_types = (int, long)
_utc = None
else:
int_types = int
try:
_utc = date.timezone.utc
except AttributeError:
_utc = date.timezone(date.timedelta(0))
class ExtType(namedtuple("ExtType", "code data")):
"""ExtType represents ext type in msgpack."""
def __new__(cls, code, data):
if not isinstance(code, int):
raise TypeError("code must be int")
if not isinstance(data, bytes):
raise TypeError("data must be bytes")
if not 0 <= code <= 127:
raise ValueError("code must be 0~127")
return super(ExtType, cls).__new__(cls, code, data)