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-rw-r--r--Windows/dateutil/parser/__init__.py60
-rw-r--r--Windows/dateutil/parser/_parser.py1580
-rw-r--r--Windows/dateutil/parser/isoparser.py411
3 files changed, 2051 insertions, 0 deletions
diff --git a/Windows/dateutil/parser/__init__.py b/Windows/dateutil/parser/__init__.py
new file mode 100644
index 00000000..216762c0
--- /dev/null
+++ b/Windows/dateutil/parser/__init__.py
@@ -0,0 +1,60 @@
+# -*- coding: utf-8 -*-
+from ._parser import parse, parser, parserinfo
+from ._parser import DEFAULTPARSER, DEFAULTTZPARSER
+from ._parser import UnknownTimezoneWarning
+
+from ._parser import __doc__
+
+from .isoparser import isoparser, isoparse
+
+__all__ = ['parse', 'parser', 'parserinfo',
+ 'isoparse', 'isoparser',
+ 'UnknownTimezoneWarning']
+
+
+###
+# Deprecate portions of the private interface so that downstream code that
+# is improperly relying on it is given *some* notice.
+
+
+def __deprecated_private_func(f):
+ from functools import wraps
+ import warnings
+
+ msg = ('{name} is a private function and may break without warning, '
+ 'it will be moved and or renamed in future versions.')
+ msg = msg.format(name=f.__name__)
+
+ @wraps(f)
+ def deprecated_func(*args, **kwargs):
+ warnings.warn(msg, DeprecationWarning)
+ return f(*args, **kwargs)
+
+ return deprecated_func
+
+def __deprecate_private_class(c):
+ import warnings
+
+ msg = ('{name} is a private class and may break without warning, '
+ 'it will be moved and or renamed in future versions.')
+ msg = msg.format(name=c.__name__)
+
+ class private_class(c):
+ __doc__ = c.__doc__
+
+ def __init__(self, *args, **kwargs):
+ warnings.warn(msg, DeprecationWarning)
+ super(private_class, self).__init__(*args, **kwargs)
+
+ private_class.__name__ = c.__name__
+
+ return private_class
+
+
+from ._parser import _timelex, _resultbase
+from ._parser import _tzparser, _parsetz
+
+_timelex = __deprecate_private_class(_timelex)
+_tzparser = __deprecate_private_class(_tzparser)
+_resultbase = __deprecate_private_class(_resultbase)
+_parsetz = __deprecated_private_func(_parsetz)
diff --git a/Windows/dateutil/parser/_parser.py b/Windows/dateutil/parser/_parser.py
new file mode 100644
index 00000000..0da0f3e6
--- /dev/null
+++ b/Windows/dateutil/parser/_parser.py
@@ -0,0 +1,1580 @@
+# -*- coding: utf-8 -*-
+"""
+This module offers a generic date/time string parser which is able to parse
+most known formats to represent a date and/or time.
+
+This module attempts to be forgiving with regards to unlikely input formats,
+returning a datetime object even for dates which are ambiguous. If an element
+of a date/time stamp is omitted, the following rules are applied:
+
+- If AM or PM is left unspecified, a 24-hour clock is assumed, however, an hour
+ on a 12-hour clock (``0 <= hour <= 12``) *must* be specified if AM or PM is
+ specified.
+- If a time zone is omitted, a timezone-naive datetime is returned.
+
+If any other elements are missing, they are taken from the
+:class:`datetime.datetime` object passed to the parameter ``default``. If this
+results in a day number exceeding the valid number of days per month, the
+value falls back to the end of the month.
+
+Additional resources about date/time string formats can be found below:
+
+- `A summary of the international standard date and time notation
+ <http://www.cl.cam.ac.uk/~mgk25/iso-time.html>`_
+- `W3C Date and Time Formats <http://www.w3.org/TR/NOTE-datetime>`_
+- `Time Formats (Planetary Rings Node) <https://pds-rings.seti.org:443/tools/time_formats.html>`_
+- `CPAN ParseDate module
+ <http://search.cpan.org/~muir/Time-modules-2013.0912/lib/Time/ParseDate.pm>`_
+- `Java SimpleDateFormat Class
+ <https://docs.oracle.com/javase/6/docs/api/java/text/SimpleDateFormat.html>`_
+"""
+from __future__ import unicode_literals
+
+import datetime
+import re
+import string
+import time
+import warnings
+
+from calendar import monthrange
+from io import StringIO
+
+import six
+from six import integer_types, text_type
+
+from decimal import Decimal
+
+from warnings import warn
+
+from .. import relativedelta
+from .. import tz
+
+__all__ = ["parse", "parserinfo"]
+
+
+# TODO: pandas.core.tools.datetimes imports this explicitly. Might be worth
+# making public and/or figuring out if there is something we can
+# take off their plate.
+class _timelex(object):
+ # Fractional seconds are sometimes split by a comma
+ _split_decimal = re.compile("([.,])")
+
+ def __init__(self, instream):
+ if six.PY2:
+ # In Python 2, we can't duck type properly because unicode has
+ # a 'decode' function, and we'd be double-decoding
+ if isinstance(instream, (bytes, bytearray)):
+ instream = instream.decode()
+ else:
+ if getattr(instream, 'decode', None) is not None:
+ instream = instream.decode()
+
+ if isinstance(instream, text_type):
+ instream = StringIO(instream)
+ elif getattr(instream, 'read', None) is None:
+ raise TypeError('Parser must be a string or character stream, not '
+ '{itype}'.format(itype=instream.__class__.__name__))
+
+ self.instream = instream
+ self.charstack = []
+ self.tokenstack = []
+ self.eof = False
+
+ def get_token(self):
+ """
+ This function breaks the time string into lexical units (tokens), which
+ can be parsed by the parser. Lexical units are demarcated by changes in
+ the character set, so any continuous string of letters is considered
+ one unit, any continuous string of numbers is considered one unit.
+
+ The main complication arises from the fact that dots ('.') can be used
+ both as separators (e.g. "Sep.20.2009") or decimal points (e.g.
+ "4:30:21.447"). As such, it is necessary to read the full context of
+ any dot-separated strings before breaking it into tokens; as such, this
+ function maintains a "token stack", for when the ambiguous context
+ demands that multiple tokens be parsed at once.
+ """
+ if self.tokenstack:
+ return self.tokenstack.pop(0)
+
+ seenletters = False
+ token = None
+ state = None
+
+ while not self.eof:
+ # We only realize that we've reached the end of a token when we
+ # find a character that's not part of the current token - since
+ # that character may be part of the next token, it's stored in the
+ # charstack.
+ if self.charstack:
+ nextchar = self.charstack.pop(0)
+ else:
+ nextchar = self.instream.read(1)
+ while nextchar == '\x00':
+ nextchar = self.instream.read(1)
+
+ if not nextchar:
+ self.eof = True
+ break
+ elif not state:
+ # First character of the token - determines if we're starting
+ # to parse a word, a number or something else.
+ token = nextchar
+ if self.isword(nextchar):
+ state = 'a'
+ elif self.isnum(nextchar):
+ state = '0'
+ elif self.isspace(nextchar):
+ token = ' '
+ break # emit token
+ else:
+ break # emit token
+ elif state == 'a':
+ # If we've already started reading a word, we keep reading
+ # letters until we find something that's not part of a word.
+ seenletters = True
+ if self.isword(nextchar):
+ token += nextchar
+ elif nextchar == '.':
+ token += nextchar
+ state = 'a.'
+ else:
+ self.charstack.append(nextchar)
+ break # emit token
+ elif state == '0':
+ # If we've already started reading a number, we keep reading
+ # numbers until we find something that doesn't fit.
+ if self.isnum(nextchar):
+ token += nextchar
+ elif nextchar == '.' or (nextchar == ',' and len(token) >= 2):
+ token += nextchar
+ state = '0.'
+ else:
+ self.charstack.append(nextchar)
+ break # emit token
+ elif state == 'a.':
+ # If we've seen some letters and a dot separator, continue
+ # parsing, and the tokens will be broken up later.
+ seenletters = True
+ if nextchar == '.' or self.isword(nextchar):
+ token += nextchar
+ elif self.isnum(nextchar) and token[-1] == '.':
+ token += nextchar
+ state = '0.'
+ else:
+ self.charstack.append(nextchar)
+ break # emit token
+ elif state == '0.':
+ # If we've seen at least one dot separator, keep going, we'll
+ # break up the tokens later.
+ if nextchar == '.' or self.isnum(nextchar):
+ token += nextchar
+ elif self.isword(nextchar) and token[-1] == '.':
+ token += nextchar
+ state = 'a.'
+ else:
+ self.charstack.append(nextchar)
+ break # emit token
+
+ if (state in ('a.', '0.') and (seenletters or token.count('.') > 1 or
+ token[-1] in '.,')):
+ l = self._split_decimal.split(token)
+ token = l[0]
+ for tok in l[1:]:
+ if tok:
+ self.tokenstack.append(tok)
+
+ if state == '0.' and token.count('.') == 0:
+ token = token.replace(',', '.')
+
+ return token
+
+ def __iter__(self):
+ return self
+
+ def __next__(self):
+ token = self.get_token()
+ if token is None:
+ raise StopIteration
+
+ return token
+
+ def next(self):
+ return self.__next__() # Python 2.x support
+
+ @classmethod
+ def split(cls, s):
+ return list(cls(s))
+
+ @classmethod
+ def isword(cls, nextchar):
+ """ Whether or not the next character is part of a word """
+ return nextchar.isalpha()
+
+ @classmethod
+ def isnum(cls, nextchar):
+ """ Whether the next character is part of a number """
+ return nextchar.isdigit()
+
+ @classmethod
+ def isspace(cls, nextchar):
+ """ Whether the next character is whitespace """
+ return nextchar.isspace()
+
+
+class _resultbase(object):
+
+ def __init__(self):
+ for attr in self.__slots__:
+ setattr(self, attr, None)
+
+ def _repr(self, classname):
+ l = []
+ for attr in self.__slots__:
+ value = getattr(self, attr)
+ if value is not None:
+ l.append("%s=%s" % (attr, repr(value)))
+ return "%s(%s)" % (classname, ", ".join(l))
+
+ def __len__(self):
+ return (sum(getattr(self, attr) is not None
+ for attr in self.__slots__))
+
+ def __repr__(self):
+ return self._repr(self.__class__.__name__)
+
+
+class parserinfo(object):
+ """
+ Class which handles what inputs are accepted. Subclass this to customize
+ the language and acceptable values for each parameter.
+
+ :param dayfirst:
+ Whether to interpret the first value in an ambiguous 3-integer date
+ (e.g. 01/05/09) as the day (``True``) or month (``False``). If
+ ``yearfirst`` is set to ``True``, this distinguishes between YDM
+ and YMD. Default is ``False``.
+
+ :param yearfirst:
+ Whether to interpret the first value in an ambiguous 3-integer date
+ (e.g. 01/05/09) as the year. If ``True``, the first number is taken
+ to be the year, otherwise the last number is taken to be the year.
+ Default is ``False``.
+ """
+
+ # m from a.m/p.m, t from ISO T separator
+ JUMP = [" ", ".", ",", ";", "-", "/", "'",
+ "at", "on", "and", "ad", "m", "t", "of",
+ "st", "nd", "rd", "th"]
+
+ WEEKDAYS = [("Mon", "Monday"),
+ ("Tue", "Tuesday"), # TODO: "Tues"
+ ("Wed", "Wednesday"),
+ ("Thu", "Thursday"), # TODO: "Thurs"
+ ("Fri", "Friday"),
+ ("Sat", "Saturday"),
+ ("Sun", "Sunday")]
+ MONTHS = [("Jan", "January"),
+ ("Feb", "February"), # TODO: "Febr"
+ ("Mar", "March"),
+ ("Apr", "April"),
+ ("May", "May"),
+ ("Jun", "June"),
+ ("Jul", "July"),
+ ("Aug", "August"),
+ ("Sep", "Sept", "September"),
+ ("Oct", "October"),
+ ("Nov", "November"),
+ ("Dec", "December")]
+ HMS = [("h", "hour", "hours"),
+ ("m", "minute", "minutes"),
+ ("s", "second", "seconds")]
+ AMPM = [("am", "a"),
+ ("pm", "p")]
+ UTCZONE = ["UTC", "GMT", "Z", "z"]
+ PERTAIN = ["of"]
+ TZOFFSET = {}
+ # TODO: ERA = ["AD", "BC", "CE", "BCE", "Stardate",
+ # "Anno Domini", "Year of Our Lord"]
+
+ def __init__(self, dayfirst=False, yearfirst=False):
+ self._jump = self._convert(self.JUMP)
+ self._weekdays = self._convert(self.WEEKDAYS)
+ self._months = self._convert(self.MONTHS)
+ self._hms = self._convert(self.HMS)
+ self._ampm = self._convert(self.AMPM)
+ self._utczone = self._convert(self.UTCZONE)
+ self._pertain = self._convert(self.PERTAIN)
+
+ self.dayfirst = dayfirst
+ self.yearfirst = yearfirst
+
+ self._year = time.localtime().tm_year
+ self._century = self._year // 100 * 100
+
+ def _convert(self, lst):
+ dct = {}
+ for i, v in enumerate(lst):
+ if isinstance(v, tuple):
+ for v in v:
+ dct[v.lower()] = i
+ else:
+ dct[v.lower()] = i
+ return dct
+
+ def jump(self, name):
+ return name.lower() in self._jump
+
+ def weekday(self, name):
+ try:
+ return self._weekdays[name.lower()]
+ except KeyError:
+ pass
+ return None
+
+ def month(self, name):
+ try:
+ return self._months[name.lower()] + 1
+ except KeyError:
+ pass
+ return None
+
+ def hms(self, name):
+ try:
+ return self._hms[name.lower()]
+ except KeyError:
+ return None
+
+ def ampm(self, name):
+ try:
+ return self._ampm[name.lower()]
+ except KeyError:
+ return None
+
+ def pertain(self, name):
+ return name.lower() in self._pertain
+
+ def utczone(self, name):
+ return name.lower() in self._utczone
+
+ def tzoffset(self, name):
+ if name in self._utczone:
+ return 0
+
+ return self.TZOFFSET.get(name)
+
+ def convertyear(self, year, century_specified=False):
+ """
+ Converts two-digit years to year within [-50, 49]
+ range of self._year (current local time)
+ """
+
+ # Function contract is that the year is always positive
+ assert year >= 0
+
+ if year < 100 and not century_specified:
+ # assume current century to start
+ year += self._century
+
+ if year >= self._year + 50: # if too far in future
+ year -= 100
+ elif year < self._year - 50: # if too far in past
+ year += 100
+
+ return year
+
+ def validate(self, res):
+ # move to info
+ if res.year is not None:
+ res.year = self.convertyear(res.year, res.century_specified)
+
+ if ((res.tzoffset == 0 and not res.tzname) or
+ (res.tzname == 'Z' or res.tzname == 'z')):
+ res.tzname = "UTC"
+ res.tzoffset = 0
+ elif res.tzoffset != 0 and res.tzname and self.utczone(res.tzname):
+ res.tzoffset = 0
+ return True
+
+
+class _ymd(list):
+ def __init__(self, *args, **kwargs):
+ super(self.__class__, self).__init__(*args, **kwargs)
+ self.century_specified = False
+ self.dstridx = None
+ self.mstridx = None
+ self.ystridx = None
+
+ @property
+ def has_year(self):
+ return self.ystridx is not None
+
+ @property
+ def has_month(self):
+ return self.mstridx is not None
+
+ @property
+ def has_day(self):
+ return self.dstridx is not None
+
+ def could_be_day(self, value):
+ if self.has_day:
+ return False
+ elif not self.has_month:
+ return 1 <= value <= 31
+ elif not self.has_year:
+ # Be permissive, assume leapyear
+ month = self[self.mstridx]
+ return 1 <= value <= monthrange(2000, month)[1]
+ else:
+ month = self[self.mstridx]
+ year = self[self.ystridx]
+ return 1 <= value <= monthrange(year, month)[1]
+
+ def append(self, val, label=None):
+ if hasattr(val, '__len__'):
+ if val.isdigit() and len(val) > 2:
+ self.century_specified = True
+ if label not in [None, 'Y']: # pragma: no cover
+ raise ValueError(label)
+ label = 'Y'
+ elif val > 100:
+ self.century_specified = True
+ if label not in [None, 'Y']: # pragma: no cover
+ raise ValueError(label)
+ label = 'Y'
+
+ super(self.__class__, self).append(int(val))
+
+ if label == 'M':
+ if self.has_month:
+ raise ValueError('Month is already set')
+ self.mstridx = len(self) - 1
+ elif label == 'D':
+ if self.has_day:
+ raise ValueError('Day is already set')
+ self.dstridx = len(self) - 1
+ elif label == 'Y':
+ if self.has_year:
+ raise ValueError('Year is already set')
+ self.ystridx = len(self) - 1
+
+ def _resolve_from_stridxs(self, strids):
+ """
+ Try to resolve the identities of year/month/day elements using
+ ystridx, mstridx, and dstridx, if enough of these are specified.
+ """
+ if len(self) == 3 and len(strids) == 2:
+ # we can back out the remaining stridx value
+ missing = [x for x in range(3) if x not in strids.values()]
+ key = [x for x in ['y', 'm', 'd'] if x not in strids]
+ assert len(missing) == len(key) == 1
+ key = key[0]
+ val = missing[0]
+ strids[key] = val
+
+ assert len(self) == len(strids) # otherwise this should not be called
+ out = {key: self[strids[key]] for key in strids}
+ return (out.get('y'), out.get('m'), out.get('d'))
+
+ def resolve_ymd(self, yearfirst, dayfirst):
+ len_ymd = len(self)
+ year, month, day = (None, None, None)
+
+ strids = (('y', self.ystridx),
+ ('m', self.mstridx),
+ ('d', self.dstridx))
+
+ strids = {key: val for key, val in strids if val is not None}
+ if (len(self) == len(strids) > 0 or
+ (len(self) == 3 and len(strids) == 2)):
+ return self._resolve_from_stridxs(strids)
+
+ mstridx = self.mstridx
+
+ if len_ymd > 3:
+ raise ValueError("More than three YMD values")
+ elif len_ymd == 1 or (mstridx is not None and len_ymd == 2):
+ # One member, or two members with a month string
+ if mstridx is not None:
+ month = self[mstridx]
+ # since mstridx is 0 or 1, self[mstridx-1] always
+ # looks up the other element
+ other = self[mstridx - 1]
+ else:
+ other = self[0]
+
+ if len_ymd > 1 or mstridx is None:
+ if other > 31:
+ year = other
+ else:
+ day = other
+
+ elif len_ymd == 2:
+ # Two members with numbers
+ if self[0] > 31:
+ # 99-01
+ year, month = self
+ elif self[1] > 31:
+ # 01-99
+ month, year = self
+ elif dayfirst and self[1] <= 12:
+ # 13-01
+ day, month = self
+ else:
+ # 01-13
+ month, day = self
+
+ elif len_ymd == 3:
+ # Three members
+ if mstridx == 0:
+ if self[1] > 31:
+ # Apr-2003-25
+ month, year, day = self
+ else:
+ month, day, year = self
+ elif mstridx == 1:
+ if self[0] > 31 or (yearfirst and self[2] <= 31):
+ # 99-Jan-01
+ year, month, day = self
+ else:
+ # 01-Jan-01
+ # Give precendence to day-first, since
+ # two-digit years is usually hand-written.
+ day, month, year = self
+
+ elif mstridx == 2:
+ # WTF!?
+ if self[1] > 31:
+ # 01-99-Jan
+ day, year, month = self
+ else:
+ # 99-01-Jan
+ year, day, month = self
+
+ else:
+ if (self[0] > 31 or
+ self.ystridx == 0 or
+ (yearfirst and self[1] <= 12 and self[2] <= 31)):
+ # 99-01-01
+ if dayfirst and self[2] <= 12:
+ year, day, month = self
+ else:
+ year, month, day = self
+ elif self[0] > 12 or (dayfirst and self[1] <= 12):
+ # 13-01-01
+ day, month, year = self
+ else:
+ # 01-13-01
+ month, day, year = self
+
+ return year, month, day
+
+
+class parser(object):
+ def __init__(self, info=None):
+ self.info = info or parserinfo()
+
+ def parse(self, timestr, default=None,
+ ignoretz=False, tzinfos=None, **kwargs):
+ """
+ Parse the date/time string into a :class:`datetime.datetime` object.
+
+ :param timestr:
+ Any date/time string using the supported formats.
+
+ :param default:
+ The default datetime object, if this is a datetime object and not
+ ``None``, elements specified in ``timestr`` replace elements in the
+ default object.
+
+ :param ignoretz:
+ If set ``True``, time zones in parsed strings are ignored and a
+ naive :class:`datetime.datetime` object is returned.
+
+ :param tzinfos:
+ Additional time zone names / aliases which may be present in the
+ string. This argument maps time zone names (and optionally offsets
+ from those time zones) to time zones. This parameter can be a
+ dictionary with timezone aliases mapping time zone names to time
+ zones or a function taking two parameters (``tzname`` and
+ ``tzoffset``) and returning a time zone.
+
+ The timezones to which the names are mapped can be an integer
+ offset from UTC in seconds or a :class:`tzinfo` object.
+
+ .. doctest::
+ :options: +NORMALIZE_WHITESPACE
+
+ >>> from dateutil.parser import parse
+ >>> from dateutil.tz import gettz
+ >>> tzinfos = {"BRST": -7200, "CST": gettz("America/Chicago")}
+ >>> parse("2012-01-19 17:21:00 BRST", tzinfos=tzinfos)
+ datetime.datetime(2012, 1, 19, 17, 21, tzinfo=tzoffset(u'BRST', -7200))
+ >>> parse("2012-01-19 17:21:00 CST", tzinfos=tzinfos)
+ datetime.datetime(2012, 1, 19, 17, 21,
+ tzinfo=tzfile('/usr/share/zoneinfo/America/Chicago'))
+
+ This parameter is ignored if ``ignoretz`` is set.
+
+ :param \\*\\*kwargs:
+ Keyword arguments as passed to ``_parse()``.
+
+ :return:
+ Returns a :class:`datetime.datetime` object or, if the
+ ``fuzzy_with_tokens`` option is ``True``, returns a tuple, the
+ first element being a :class:`datetime.datetime` object, the second
+ a tuple containing the fuzzy tokens.
+
+ :raises ValueError:
+ Raised for invalid or unknown string format, if the provided
+ :class:`tzinfo` is not in a valid format, or if an invalid date
+ would be created.
+
+ :raises TypeError:
+ Raised for non-string or character stream input.
+
+ :raises OverflowError:
+ Raised if the parsed date exceeds the largest valid C integer on
+ your system.
+ """
+
+ if default is None:
+ default = datetime.datetime.now().replace(hour=0, minute=0,
+ second=0, microsecond=0)
+
+ res, skipped_tokens = self._parse(timestr, **kwargs)
+
+ if res is None:
+ raise ValueError("Unknown string format:", timestr)
+
+ if len(res) == 0:
+ raise ValueError("String does not contain a date:", timestr)
+
+ ret = self._build_naive(res, default)
+
+ if not ignoretz:
+ ret = self._build_tzaware(ret, res, tzinfos)
+
+ if kwargs.get('fuzzy_with_tokens', False):
+ return ret, skipped_tokens
+ else:
+ return ret
+
+ class _result(_resultbase):
+ __slots__ = ["year", "month", "day", "weekday",
+ "hour", "minute", "second", "microsecond",
+ "tzname", "tzoffset", "ampm","any_unused_tokens"]
+
+ def _parse(self, timestr, dayfirst=None, yearfirst=None, fuzzy=False,
+ fuzzy_with_tokens=False):
+ """
+ Private method which performs the heavy lifting of parsing, called from
+ ``parse()``, which passes on its ``kwargs`` to this function.
+
+ :param timestr:
+ The string to parse.
+
+ :param dayfirst:
+ Whether to interpret the first value in an ambiguous 3-integer date
+ (e.g. 01/05/09) as the day (``True``) or month (``False``). If
+ ``yearfirst`` is set to ``True``, this distinguishes between YDM
+ and YMD. If set to ``None``, this value is retrieved from the
+ current :class:`parserinfo` object (which itself defaults to
+ ``False``).
+
+ :param yearfirst:
+ Whether to interpret the first value in an ambiguous 3-integer date
+ (e.g. 01/05/09) as the year. If ``True``, the first number is taken
+ to be the year, otherwise the last number is taken to be the year.
+ If this is set to ``None``, the value is retrieved from the current
+ :class:`parserinfo` object (which itself defaults to ``False``).
+
+ :param fuzzy:
+ Whether to allow fuzzy parsing, allowing for string like "Today is
+ January 1, 2047 at 8:21:00AM".
+
+ :param fuzzy_with_tokens:
+ If ``True``, ``fuzzy`` is automatically set to True, and the parser
+ will return a tuple where the first element is the parsed
+ :class:`datetime.datetime` datetimestamp and the second element is
+ a tuple containing the portions of the string which were ignored:
+
+ .. doctest::
+
+ >>> from dateutil.parser import parse
+ >>> parse("Today is January 1, 2047 at 8:21:00AM", fuzzy_with_tokens=True)
+ (datetime.datetime(2047, 1, 1, 8, 21), (u'Today is ', u' ', u'at '))
+
+ """
+ if fuzzy_with_tokens:
+ fuzzy = True
+
+ info = self.info
+
+ if dayfirst is None:
+ dayfirst = info.dayfirst
+
+ if yearfirst is None:
+ yearfirst = info.yearfirst
+
+ res = self._result()
+ l = _timelex.split(timestr) # Splits the timestr into tokens
+
+ skipped_idxs = []
+
+ # year/month/day list
+ ymd = _ymd()
+
+ len_l = len(l)
+ i = 0
+ try:
+ while i < len_l:
+
+ # Check if it's a number
+ value_repr = l[i]
+ try:
+ value = float(value_repr)
+ except ValueError:
+ value = None
+
+ if value is not None:
+ # Numeric token
+ i = self._parse_numeric_token(l, i, info, ymd, res, fuzzy)
+
+ # Check weekday
+ elif info.weekday(l[i]) is not None:
+ value = info.weekday(l[i])
+ res.weekday = value
+
+ # Check month name
+ elif info.month(l[i]) is not None:
+ value = info.month(l[i])
+ ymd.append(value, 'M')
+
+ if i + 1 < len_l:
+ if l[i + 1] in ('-', '/'):
+ # Jan-01[-99]
+ sep = l[i + 1]
+ ymd.append(l[i + 2])
+
+ if i + 3 < len_l and l[i + 3] == sep:
+ # Jan-01-99
+ ymd.append(l[i + 4])
+ i += 2
+
+ i += 2
+
+ elif (i + 4 < len_l and l[i + 1] == l[i + 3] == ' ' and
+ info.pertain(l[i + 2])):
+ # Jan of 01
+ # In this case, 01 is clearly year
+ if l[i + 4].isdigit():
+ # Convert it here to become unambiguous
+ value = int(l[i + 4])
+ year = str(info.convertyear(value))
+ ymd.append(year, 'Y')
+ else:
+ # Wrong guess
+ pass
+ # TODO: not hit in tests
+ i += 4
+
+ # Check am/pm
+ elif info.ampm(l[i]) is not None:
+ value = info.ampm(l[i])
+ val_is_ampm = self._ampm_valid(res.hour, res.ampm, fuzzy)
+
+ if val_is_ampm:
+ res.hour = self._adjust_ampm(res.hour, value)
+ res.ampm = value
+
+ elif fuzzy:
+ skipped_idxs.append(i)
+
+ # Check for a timezone name
+ elif self._could_be_tzname(res.hour, res.tzname, res.tzoffset, l[i]):
+ res.tzname = l[i]
+ res.tzoffset = info.tzoffset(res.tzname)
+
+ # Check for something like GMT+3, or BRST+3. Notice
+ # that it doesn't mean "I am 3 hours after GMT", but
+ # "my time +3 is GMT". If found, we reverse the
+ # logic so that timezone parsing code will get it
+ # right.
+ if i + 1 < len_l and l[i + 1] in ('+', '-'):
+ l[i + 1] = ('+', '-')[l[i + 1] == '+']
+ res.tzoffset = None
+ if info.utczone(res.tzname):
+ # With something like GMT+3, the timezone
+ # is *not* GMT.
+ res.tzname = None
+
+ # Check for a numbered timezone
+ elif res.hour is not None and l[i] in ('+', '-'):
+ signal = (-1, 1)[l[i] == '+']
+ len_li = len(l[i + 1])
+
+ # TODO: check that l[i + 1] is integer?
+ if len_li == 4:
+ # -0300
+ hour_offset = int(l[i + 1][:2])
+ min_offset = int(l[i + 1][2:])
+ elif i + 2 < len_l and l[i + 2] == ':':
+ # -03:00
+ hour_offset = int(l[i + 1])
+ min_offset = int(l[i + 3]) # TODO: Check that l[i+3] is minute-like?
+ i += 2
+ elif len_li <= 2:
+ # -[0]3
+ hour_offset = int(l[i + 1][:2])
+ min_offset = 0
+ else:
+ raise ValueError(timestr)
+
+ res.tzoffset = signal * (hour_offset * 3600 + min_offset * 60)
+
+ # Look for a timezone name between parenthesis
+ if (i + 5 < len_l and
+ info.jump(l[i + 2]) and l[i + 3] == '(' and
+ l[i + 5] == ')' and
+ 3 <= len(l[i + 4]) and
+ self._could_be_tzname(res.hour, res.tzname,
+ None, l[i + 4])):
+ # -0300 (BRST)
+ res.tzname = l[i + 4]
+ i += 4
+
+ i += 1
+
+ # Check jumps
+ elif not (info.jump(l[i]) or fuzzy):
+ raise ValueError(timestr)
+
+ else:
+ skipped_idxs.append(i)
+ i += 1
+
+ # Process year/month/day
+ year, month, day = ymd.resolve_ymd(yearfirst, dayfirst)
+
+ res.century_specified = ymd.century_specified
+ res.year = year
+ res.month = month
+ res.day = day
+
+ except (IndexError, ValueError):
+ return None, None
+
+ if not info.validate(res):
+ return None, None
+
+ if fuzzy_with_tokens:
+ skipped_tokens = self._recombine_skipped(l, skipped_idxs)
+ return res, tuple(skipped_tokens)
+ else:
+ return res, None
+
+ def _parse_numeric_token(self, tokens, idx, info, ymd, res, fuzzy):
+ # Token is a number
+ value_repr = tokens[idx]
+ try:
+ value = self._to_decimal(value_repr)
+ except Exception as e:
+ six.raise_from(ValueError('Unknown numeric token'), e)
+
+ len_li = len(value_repr)
+
+ len_l = len(tokens)
+
+ if (len(ymd) == 3 and len_li in (2, 4) and
+ res.hour is None and
+ (idx + 1 >= len_l or
+ (tokens[idx + 1] != ':' and
+ info.hms(tokens[idx + 1]) is None))):
+ # 19990101T23[59]
+ s = tokens[idx]
+ res.hour = int(s[:2])
+
+ if len_li == 4:
+ res.minute = int(s[2:])
+
+ elif len_li == 6 or (len_li > 6 and tokens[idx].find('.') == 6):
+ # YYMMDD or HHMMSS[.ss]
+ s = tokens[idx]
+
+ if not ymd and '.' not in tokens[idx]:
+ ymd.append(s[:2])
+ ymd.append(s[2:4])
+ ymd.append(s[4:])
+ else:
+ # 19990101T235959[.59]
+
+ # TODO: Check if res attributes already set.
+ res.hour = int(s[:2])
+ res.minute = int(s[2:4])
+ res.second, res.microsecond = self._parsems(s[4:])
+
+ elif len_li in (8, 12, 14):
+ # YYYYMMDD
+ s = tokens[idx]
+ ymd.append(s[:4], 'Y')
+ ymd.append(s[4:6])
+ ymd.append(s[6:8])
+
+ if len_li > 8:
+ res.hour = int(s[8:10])
+ res.minute = int(s[10:12])
+
+ if len_li > 12:
+ res.second = int(s[12:])
+
+ elif self._find_hms_idx(idx, tokens, info, allow_jump=True) is not None:
+ # HH[ ]h or MM[ ]m or SS[.ss][ ]s
+ hms_idx = self._find_hms_idx(idx, tokens, info, allow_jump=True)
+ (idx, hms) = self._parse_hms(idx, tokens, info, hms_idx)
+ if hms is not None:
+ # TODO: checking that hour/minute/second are not
+ # already set?
+ self._assign_hms(res, value_repr, hms)
+
+ elif idx + 2 < len_l and tokens[idx + 1] == ':':
+ # HH:MM[:SS[.ss]]
+ res.hour = int(value)
+ value = self._to_decimal(tokens[idx + 2]) # TODO: try/except for this?
+ (res.minute, res.second) = self._parse_min_sec(value)
+
+ if idx + 4 < len_l and tokens[idx + 3] == ':':
+ res.second, res.microsecond = self._parsems(tokens[idx + 4])
+
+ idx += 2
+
+ idx += 2
+
+ elif idx + 1 < len_l and tokens[idx + 1] in ('-', '/', '.'):
+ sep = tokens[idx + 1]
+ ymd.append(value_repr)
+
+ if idx + 2 < len_l and not info.jump(tokens[idx + 2]):
+ if tokens[idx + 2].isdigit():
+ # 01-01[-01]
+ ymd.append(tokens[idx + 2])
+ else:
+ # 01-Jan[-01]
+ value = info.month(tokens[idx + 2])
+
+ if value is not None:
+ ymd.append(value, 'M')
+ else:
+ raise ValueError()
+
+ if idx + 3 < len_l and tokens[idx + 3] == sep:
+ # We have three members
+ value = info.month(tokens[idx + 4])
+
+ if value is not None:
+ ymd.append(value, 'M')
+ else:
+ ymd.append(tokens[idx + 4])
+ idx += 2
+
+ idx += 1
+ idx += 1
+
+ elif idx + 1 >= len_l or info.jump(tokens[idx + 1]):
+ if idx + 2 < len_l and info.ampm(tokens[idx + 2]) is not None:
+ # 12 am
+ hour = int(value)
+ res.hour = self._adjust_ampm(hour, info.ampm(tokens[idx + 2]))
+ idx += 1
+ else:
+ # Year, month or day
+ ymd.append(value)
+ idx += 1
+
+ elif info.ampm(tokens[idx + 1]) is not None and (0 <= value < 24):
+ # 12am
+ hour = int(value)
+ res.hour = self._adjust_ampm(hour, info.ampm(tokens[idx + 1]))
+ idx += 1
+
+ elif ymd.could_be_day(value):
+ ymd.append(value)
+
+ elif not fuzzy:
+ raise ValueError()
+
+ return idx
+
+ def _find_hms_idx(self, idx, tokens, info, allow_jump):
+ len_l = len(tokens)
+
+ if idx+1 < len_l and info.hms(tokens[idx+1]) is not None:
+ # There is an "h", "m", or "s" label following this token. We take
+ # assign the upcoming label to the current token.
+ # e.g. the "12" in 12h"
+ hms_idx = idx + 1
+
+ elif (allow_jump and idx+2 < len_l and tokens[idx+1] == ' ' and
+ info.hms(tokens[idx+2]) is not None):
+ # There is a space and then an "h", "m", or "s" label.
+ # e.g. the "12" in "12 h"
+ hms_idx = idx + 2
+
+ elif idx > 0 and info.hms(tokens[idx-1]) is not None:
+ # There is a "h", "m", or "s" preceeding this token. Since neither
+ # of the previous cases was hit, there is no label following this
+ # token, so we use the previous label.
+ # e.g. the "04" in "12h04"
+ hms_idx = idx-1
+
+ elif (1 < idx == len_l-1 and tokens[idx-1] == ' ' and
+ info.hms(tokens[idx-2]) is not None):
+ # If we are looking at the final token, we allow for a
+ # backward-looking check to skip over a space.
+ # TODO: Are we sure this is the right condition here?
+ hms_idx = idx - 2
+
+ else:
+ hms_idx = None
+
+ return hms_idx
+
+ def _assign_hms(self, res, value_repr, hms):
+ # See GH issue #427, fixing float rounding
+ value = self._to_decimal(value_repr)
+
+ if hms == 0:
+ # Hour
+ res.hour = int(value)
+ if value % 1:
+ res.minute = int(60*(value % 1))
+
+ elif hms == 1:
+ (res.minute, res.second) = self._parse_min_sec(value)
+
+ elif hms == 2:
+ (res.second, res.microsecond) = self._parsems(value_repr)
+
+ def _could_be_tzname(self, hour, tzname, tzoffset, token):
+ return (hour is not None and
+ tzname is None and
+ tzoffset is None and
+ len(token) <= 5 and
+ (all(x in string.ascii_uppercase for x in token)
+ or token in self.info.UTCZONE))
+
+ def _ampm_valid(self, hour, ampm, fuzzy):
+ """
+ For fuzzy parsing, 'a' or 'am' (both valid English words)
+ may erroneously trigger the AM/PM flag. Deal with that
+ here.
+ """
+ val_is_ampm = True
+
+ # If there's already an AM/PM flag, this one isn't one.
+ if fuzzy and ampm is not None:
+ val_is_ampm = False
+
+ # If AM/PM is found and hour is not, raise a ValueError
+ if hour is None:
+ if fuzzy:
+ val_is_ampm = False
+ else:
+ raise ValueError('No hour specified with AM or PM flag.')
+ elif not 0 <= hour <= 12:
+ # If AM/PM is found, it's a 12 hour clock, so raise
+ # an error for invalid range
+ if fuzzy:
+ val_is_ampm = False
+ else:
+ raise ValueError('Invalid hour specified for 12-hour clock.')
+
+ return val_is_ampm
+
+ def _adjust_ampm(self, hour, ampm):
+ if hour < 12 and ampm == 1:
+ hour += 12
+ elif hour == 12 and ampm == 0:
+ hour = 0
+ return hour
+
+ def _parse_min_sec(self, value):
+ # TODO: Every usage of this function sets res.second to the return
+ # value. Are there any cases where second will be returned as None and
+ # we *dont* want to set res.second = None?
+ minute = int(value)
+ second = None
+
+ sec_remainder = value % 1
+ if sec_remainder:
+ second = int(60 * sec_remainder)
+ return (minute, second)
+
+ def _parsems(self, value):
+ """Parse a I[.F] seconds value into (seconds, microseconds)."""
+ if "." not in value:
+ return int(value), 0
+ else:
+ i, f = value.split(".")
+ return int(i), int(f.ljust(6, "0")[:6])
+
+ def _parse_hms(self, idx, tokens, info, hms_idx):
+ # TODO: Is this going to admit a lot of false-positives for when we
+ # just happen to have digits and "h", "m" or "s" characters in non-date
+ # text? I guess hex hashes won't have that problem, but there's plenty
+ # of random junk out there.
+ if hms_idx is None:
+ hms = None
+ new_idx = idx
+ elif hms_idx > idx:
+ hms = info.hms(tokens[hms_idx])
+ new_idx = hms_idx
+ else:
+ # Looking backwards, increment one.
+ hms = info.hms(tokens[hms_idx]) + 1
+ new_idx = idx
+
+ return (new_idx, hms)
+
+ def _recombine_skipped(self, tokens, skipped_idxs):
+ """
+ >>> tokens = ["foo", " ", "bar", " ", "19June2000", "baz"]
+ >>> skipped_idxs = [0, 1, 2, 5]
+ >>> _recombine_skipped(tokens, skipped_idxs)
+ ["foo bar", "baz"]
+ """
+ skipped_tokens = []
+ for i, idx in enumerate(sorted(skipped_idxs)):
+ if i > 0 and idx - 1 == skipped_idxs[i - 1]:
+ skipped_tokens[-1] = skipped_tokens[-1] + tokens[idx]
+ else:
+ skipped_tokens.append(tokens[idx])
+
+ return skipped_tokens
+
+ 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
+
+ def _build_tzaware(self, naive, res, tzinfos):
+ if (callable(tzinfos) or (tzinfos and res.tzname in tzinfos)):
+ tzinfo = self._build_tzinfo(tzinfos, res.tzname, res.tzoffset)
+ aware = naive.replace(tzinfo=tzinfo)
+ aware = self._assign_tzname(aware, res.tzname)
+
+ elif res.tzname and res.tzname in time.tzname:
+ aware = naive.replace(tzinfo=tz.tzlocal())
+
+ # Handle ambiguous local datetime
+ aware = self._assign_tzname(aware, res.tzname)
+
+ # This is mostly relevant for winter GMT zones parsed in the UK
+ if (aware.tzname() != res.tzname and
+ res.tzname in self.info.UTCZONE):
+ aware = aware.replace(tzinfo=tz.tzutc())
+
+ elif res.tzoffset == 0:
+ aware = naive.replace(tzinfo=tz.tzutc())
+
+ elif res.tzoffset:
+ aware = naive.replace(tzinfo=tz.tzoffset(res.tzname, res.tzoffset))
+
+ elif not res.tzname and not res.tzoffset:
+ # i.e. no timezone information was found.
+ aware = naive
+
+ elif res.tzname:
+ # tz-like string was parsed but we don't know what to do
+ # with it
+ warnings.warn("tzname {tzname} identified but not understood. "
+ "Pass `tzinfos` argument in order to correctly "
+ "return a timezone-aware datetime. In a future "
+ "version, this will raise an "
+ "exception.".format(tzname=res.tzname),
+ category=UnknownTimezoneWarning)
+ aware = naive
+
+ return aware
+
+ def _build_naive(self, res, default):
+ repl = {}
+ for attr in ("year", "month", "day", "hour",
+ "minute", "second", "microsecond"):
+ value = getattr(res, attr)
+ if value is not None:
+ repl[attr] = value
+
+ if 'day' not in repl:
+ # If the default day exceeds the last day of the month, fall back
+ # to the end of the month.
+ cyear = default.year if res.year is None else res.year
+ cmonth = default.month if res.month is None else res.month
+ cday = default.day if res.day is None else res.day
+
+ if cday > monthrange(cyear, cmonth)[1]:
+ repl['day'] = monthrange(cyear, cmonth)[1]
+
+ naive = default.replace(**repl)
+
+ if res.weekday is not None and not res.day:
+ naive = naive + relativedelta.relativedelta(weekday=res.weekday)
+
+ return naive
+
+ def _assign_tzname(self, dt, tzname):
+ if dt.tzname() != tzname:
+ new_dt = tz.enfold(dt, fold=1)
+ if new_dt.tzname() == tzname:
+ return new_dt
+
+ return dt
+
+ def _to_decimal(self, val):
+ try:
+ decimal_value = Decimal(val)
+ # See GH 662, edge case, infinite value should not be converted via `_to_decimal`
+ if not decimal_value.is_finite():
+ raise ValueError("Converted decimal value is infinite or NaN")
+ except Exception as e:
+ msg = "Could not convert %s to decimal" % val
+ six.raise_from(ValueError(msg), e)
+ else:
+ return decimal_value
+
+
+DEFAULTPARSER = parser()
+
+
+def parse(timestr, parserinfo=None, **kwargs):
+ """
+
+ Parse a string in one of the supported formats, using the
+ ``parserinfo`` parameters.
+
+ :param timestr:
+ A string containing a date/time stamp.
+
+ :param parserinfo:
+ A :class:`parserinfo` object containing parameters for the parser.
+ If ``None``, the default arguments to the :class:`parserinfo`
+ constructor are used.
+
+ The ``**kwargs`` parameter takes the following keyword arguments:
+
+ :param default:
+ The default datetime object, if this is a datetime object and not
+ ``None``, elements specified in ``timestr`` replace elements in the
+ default object.
+
+ :param ignoretz:
+ If set ``True``, time zones in parsed strings are ignored and a naive
+ :class:`datetime` object is returned.
+
+ :param tzinfos:
+ Additional time zone names / aliases which may be present in the
+ string. This argument maps time zone names (and optionally offsets
+ from those time zones) to time zones. This parameter can be a
+ dictionary with timezone aliases mapping time zone names to time
+ zones or a function taking two parameters (``tzname`` and
+ ``tzoffset``) and returning a time zone.
+
+ The timezones to which the names are mapped can be an integer
+ offset from UTC in seconds or a :class:`tzinfo` object.
+
+ .. doctest::
+ :options: +NORMALIZE_WHITESPACE
+
+ >>> from dateutil.parser import parse
+ >>> from dateutil.tz import gettz
+ >>> tzinfos = {"BRST": -7200, "CST": gettz("America/Chicago")}
+ >>> parse("2012-01-19 17:21:00 BRST", tzinfos=tzinfos)
+ datetime.datetime(2012, 1, 19, 17, 21, tzinfo=tzoffset(u'BRST', -7200))
+ >>> parse("2012-01-19 17:21:00 CST", tzinfos=tzinfos)
+ datetime.datetime(2012, 1, 19, 17, 21,
+ tzinfo=tzfile('/usr/share/zoneinfo/America/Chicago'))
+
+ This parameter is ignored if ``ignoretz`` is set.
+
+ :param dayfirst:
+ Whether to interpret the first value in an ambiguous 3-integer date
+ (e.g. 01/05/09) as the day (``True``) or month (``False``). If
+ ``yearfirst`` is set to ``True``, this distinguishes between YDM and
+ YMD. If set to ``None``, this value is retrieved from the current
+ :class:`parserinfo` object (which itself defaults to ``False``).
+
+ :param yearfirst:
+ Whether to interpret the first value in an ambiguous 3-integer date
+ (e.g. 01/05/09) as the year. If ``True``, the first number is taken to
+ be the year, otherwise the last number is taken to be the year. If
+ this is set to ``None``, the value is retrieved from the current
+ :class:`parserinfo` object (which itself defaults to ``False``).
+
+ :param fuzzy:
+ Whether to allow fuzzy parsing, allowing for string like "Today is
+ January 1, 2047 at 8:21:00AM".
+
+ :param fuzzy_with_tokens:
+ If ``True``, ``fuzzy`` is automatically set to True, and the parser
+ will return a tuple where the first element is the parsed
+ :class:`datetime.datetime` datetimestamp and the second element is
+ a tuple containing the portions of the string which were ignored:
+
+ .. doctest::
+
+ >>> from dateutil.parser import parse
+ >>> parse("Today is January 1, 2047 at 8:21:00AM", fuzzy_with_tokens=True)
+ (datetime.datetime(2047, 1, 1, 8, 21), (u'Today is ', u' ', u'at '))
+
+ :return:
+ Returns a :class:`datetime.datetime` object or, if the
+ ``fuzzy_with_tokens`` option is ``True``, returns a tuple, the
+ first element being a :class:`datetime.datetime` object, the second
+ a tuple containing the fuzzy tokens.
+
+ :raises ValueError:
+ Raised for invalid or unknown string format, if the provided
+ :class:`tzinfo` is not in a valid format, or if an invalid date
+ would be created.
+
+ :raises OverflowError:
+ Raised if the parsed date exceeds the largest valid C integer on
+ your system.
+ """
+ if parserinfo:
+ return parser(parserinfo).parse(timestr, **kwargs)
+ else:
+ return DEFAULTPARSER.parse(timestr, **kwargs)
+
+
+class _tzparser(object):
+
+ class _result(_resultbase):
+
+ __slots__ = ["stdabbr", "stdoffset", "dstabbr", "dstoffset",
+ "start", "end"]
+
+ class _attr(_resultbase):
+ __slots__ = ["month", "week", "weekday",
+ "yday", "jyday", "day", "time"]
+
+ def __repr__(self):
+ return self._repr("")
+
+ def __init__(self):
+ _resultbase.__init__(self)
+ self.start = self._attr()
+ self.end = self._attr()
+
+ def parse(self, tzstr):
+ res = self._result()
+ l = [x for x in re.split(r'([,:.]|[a-zA-Z]+|[0-9]+)',tzstr) if x]
+ used_idxs = list()
+ try:
+
+ len_l = len(l)
+
+ i = 0
+ while i < len_l:
+ # BRST+3[BRDT[+2]]
+ j = i
+ while j < len_l and not [x for x in l[j]
+ if x in "0123456789:,-+"]:
+ j += 1
+ if j != i:
+ if not res.stdabbr:
+ offattr = "stdoffset"
+ res.stdabbr = "".join(l[i:j])
+ else:
+ offattr = "dstoffset"
+ res.dstabbr = "".join(l[i:j])
+
+ for ii in range(j):
+ used_idxs.append(ii)
+ i = j
+ if (i < len_l and (l[i] in ('+', '-') or l[i][0] in
+ "0123456789")):
+ if l[i] in ('+', '-'):
+ # Yes, that's right. See the TZ variable
+ # documentation.
+ signal = (1, -1)[l[i] == '+']
+ used_idxs.append(i)
+ i += 1
+ else:
+ signal = -1
+ len_li = len(l[i])
+ if len_li == 4:
+ # -0300
+ setattr(res, offattr, (int(l[i][:2]) * 3600 +
+ int(l[i][2:]) * 60) * signal)
+ elif i + 1 < len_l and l[i + 1] == ':':
+ # -03:00
+ setattr(res, offattr,
+ (int(l[i]) * 3600 +
+ int(l[i + 2]) * 60) * signal)
+ used_idxs.append(i)
+ i += 2
+ elif len_li <= 2:
+ # -[0]3
+ setattr(res, offattr,
+ int(l[i][:2]) * 3600 * signal)
+ else:
+ return None
+ used_idxs.append(i)
+ i += 1
+ if res.dstabbr:
+ break
+ else:
+ break
+
+
+ if i < len_l:
+ for j in range(i, len_l):
+ if l[j] == ';':
+ l[j] = ','
+
+ assert l[i] == ','
+
+ i += 1
+
+ if i >= len_l:
+ pass
+ elif (8 <= l.count(',') <= 9 and
+ not [y for x in l[i:] if x != ','
+ for y in x if y not in "0123456789+-"]):
+ # GMT0BST,3,0,30,3600,10,0,26,7200[,3600]
+ for x in (res.start, res.end):
+ x.month = int(l[i])
+ used_idxs.append(i)
+ i += 2
+ if l[i] == '-':
+ value = int(l[i + 1]) * -1
+ used_idxs.append(i)
+ i += 1
+ else:
+ value = int(l[i])
+ used_idxs.append(i)
+ i += 2
+ if value:
+ x.week = value
+ x.weekday = (int(l[i]) - 1) % 7
+ else:
+ x.day = int(l[i])
+ used_idxs.append(i)
+ i += 2
+ x.time = int(l[i])
+ used_idxs.append(i)
+ i += 2
+ if i < len_l:
+ if l[i] in ('-', '+'):
+ signal = (-1, 1)[l[i] == "+"]
+ used_idxs.append(i)
+ i += 1
+ else:
+ signal = 1
+ used_idxs.append(i)
+ res.dstoffset = (res.stdoffset + int(l[i]) * signal)
+
+ # This was a made-up format that is not in normal use
+ warn(('Parsed time zone "%s"' % tzstr) +
+ 'is in a non-standard dateutil-specific format, which ' +
+ 'is now deprecated; support for parsing this format ' +
+ 'will be removed in future versions. It is recommended ' +
+ 'that you switch to a standard format like the GNU ' +
+ 'TZ variable format.', tz.DeprecatedTzFormatWarning)
+ elif (l.count(',') == 2 and l[i:].count('/') <= 2 and
+ not [y for x in l[i:] if x not in (',', '/', 'J', 'M',
+ '.', '-', ':')
+ for y in x if y not in "0123456789"]):
+ for x in (res.start, res.end):
+ if l[i] == 'J':
+ # non-leap year day (1 based)
+ used_idxs.append(i)
+ i += 1
+ x.jyday = int(l[i])
+ elif l[i] == 'M':
+ # month[-.]week[-.]weekday
+ used_idxs.append(i)
+ i += 1
+ x.month = int(l[i])
+ used_idxs.append(i)
+ i += 1
+ assert l[i] in ('-', '.')
+ used_idxs.append(i)
+ i += 1
+ x.week = int(l[i])
+ if x.week == 5:
+ x.week = -1
+ used_idxs.append(i)
+ i += 1
+ assert l[i] in ('-', '.')
+ used_idxs.append(i)
+ i += 1
+ x.weekday = (int(l[i]) - 1) % 7
+ else:
+ # year day (zero based)
+ x.yday = int(l[i]) + 1
+
+ used_idxs.append(i)
+ i += 1
+
+ if i < len_l and l[i] == '/':
+ used_idxs.append(i)
+ i += 1
+ # start time
+ len_li = len(l[i])
+ if len_li == 4:
+ # -0300
+ x.time = (int(l[i][:2]) * 3600 +
+ int(l[i][2:]) * 60)
+ elif i + 1 < len_l and l[i + 1] == ':':
+ # -03:00
+ x.time = int(l[i]) * 3600 + int(l[i + 2]) * 60
+ used_idxs.append(i)
+ i += 2
+ if i + 1 < len_l and l[i + 1] == ':':
+ used_idxs.append(i)
+ i += 2
+ x.time += int(l[i])
+ elif len_li <= 2:
+ # -[0]3
+ x.time = (int(l[i][:2]) * 3600)
+ else:
+ return None
+ used_idxs.append(i)
+ i += 1
+
+ assert i == len_l or l[i] == ','
+
+ i += 1
+
+ assert i >= len_l
+
+ except (IndexError, ValueError, AssertionError):
+ return None
+
+ unused_idxs = set(range(len_l)).difference(used_idxs)
+ res.any_unused_tokens = not {l[n] for n in unused_idxs}.issubset({",",":"})
+ return res
+
+
+DEFAULTTZPARSER = _tzparser()
+
+
+def _parsetz(tzstr):
+ return DEFAULTTZPARSER.parse(tzstr)
+
+class UnknownTimezoneWarning(RuntimeWarning):
+ """Raised when the parser finds a timezone it cannot parse into a tzinfo"""
+# vim:ts=4:sw=4:et
diff --git a/Windows/dateutil/parser/isoparser.py b/Windows/dateutil/parser/isoparser.py
new file mode 100644
index 00000000..e3cf6d8c
--- /dev/null
+++ b/Windows/dateutil/parser/isoparser.py
@@ -0,0 +1,411 @@
+# -*- coding: utf-8 -*-
+"""
+This module offers a parser for ISO-8601 strings
+
+It is intended to support all valid date, time and datetime formats per the
+ISO-8601 specification.
+
+..versionadded:: 2.7.0
+"""
+from datetime import datetime, timedelta, time, date
+import calendar
+from dateutil import tz
+
+from functools import wraps
+
+import re
+import six
+
+__all__ = ["isoparse", "isoparser"]
+
+
+def _takes_ascii(f):
+ @wraps(f)
+ def func(self, str_in, *args, **kwargs):
+ # If it's a stream, read the whole thing
+ str_in = getattr(str_in, 'read', lambda: str_in)()
+
+ # If it's unicode, turn it into bytes, since ISO-8601 only covers ASCII
+ if isinstance(str_in, six.text_type):
+ # ASCII is the same in UTF-8
+ try:
+ str_in = str_in.encode('ascii')
+ except UnicodeEncodeError as e:
+ msg = 'ISO-8601 strings should contain only ASCII characters'
+ six.raise_from(ValueError(msg), e)
+
+ return f(self, str_in, *args, **kwargs)
+
+ return func
+
+
+class isoparser(object):
+ def __init__(self, sep=None):
+ """
+ :param sep:
+ A single character that separates date and time portions. If
+ ``None``, the parser will accept any single character.
+ For strict ISO-8601 adherence, pass ``'T'``.
+ """
+ if sep is not None:
+ if (len(sep) != 1 or ord(sep) >= 128 or sep in '0123456789'):
+ raise ValueError('Separator must be a single, non-numeric ' +
+ 'ASCII character')
+
+ sep = sep.encode('ascii')
+
+ self._sep = sep
+
+ @_takes_ascii
+ def isoparse(self, dt_str):
+ """
+ Parse an ISO-8601 datetime string into a :class:`datetime.datetime`.
+
+ An ISO-8601 datetime string consists of a date portion, followed
+ optionally by a time portion - the date and time portions are separated
+ by a single character separator, which is ``T`` in the official
+ standard. Incomplete date formats (such as ``YYYY-MM``) may *not* be
+ combined with a time portion.
+
+ Supported date formats are:
+
+ Common:
+
+ - ``YYYY``
+ - ``YYYY-MM`` or ``YYYYMM``
+ - ``YYYY-MM-DD`` or ``YYYYMMDD``
+
+ Uncommon:
+
+ - ``YYYY-Www`` or ``YYYYWww`` - ISO week (day defaults to 0)
+ - ``YYYY-Www-D`` or ``YYYYWwwD`` - ISO week and day
+
+ The ISO week and day numbering follows the same logic as
+ :func:`datetime.date.isocalendar`.
+
+ Supported time formats are:
+
+ - ``hh``
+ - ``hh:mm`` or ``hhmm``
+ - ``hh:mm:ss`` or ``hhmmss``
+ - ``hh:mm:ss.ssssss`` (Up to 6 sub-second digits)
+
+ Midnight is a special case for `hh`, as the standard supports both
+ 00:00 and 24:00 as a representation. The decimal separator can be
+ either a dot or a comma.
+
+
+ .. caution::
+
+ Support for fractional components other than seconds is part of the
+ ISO-8601 standard, but is not currently implemented in this parser.
+
+ Supported time zone offset formats are:
+
+ - `Z` (UTC)
+ - `±HH:MM`
+ - `±HHMM`
+ - `±HH`
+
+ Offsets will be represented as :class:`dateutil.tz.tzoffset` objects,
+ with the exception of UTC, which will be represented as
+ :class:`dateutil.tz.tzutc`. Time zone offsets equivalent to UTC (such
+ as `+00:00`) will also be represented as :class:`dateutil.tz.tzutc`.
+
+ :param dt_str:
+ A string or stream containing only an ISO-8601 datetime string
+
+ :return:
+ Returns a :class:`datetime.datetime` representing the string.
+ Unspecified components default to their lowest value.
+
+ .. warning::
+
+ As of version 2.7.0, the strictness of the parser should not be
+ considered a stable part of the contract. Any valid ISO-8601 string
+ that parses correctly with the default settings will continue to
+ parse correctly in future versions, but invalid strings that
+ currently fail (e.g. ``2017-01-01T00:00+00:00:00``) are not
+ guaranteed to continue failing in future versions if they encode
+ a valid date.
+
+ .. versionadded:: 2.7.0
+ """
+ components, pos = self._parse_isodate(dt_str)
+
+ if len(dt_str) > pos:
+ if self._sep is None or dt_str[pos:pos + 1] == self._sep:
+ components += self._parse_isotime(dt_str[pos + 1:])
+ else:
+ raise ValueError('String contains unknown ISO components')
+
+ if len(components) > 3 and components[3] == 24:
+ components[3] = 0
+ return datetime(*components) + timedelta(days=1)
+
+ return datetime(*components)
+
+ @_takes_ascii
+ def parse_isodate(self, datestr):
+ """
+ Parse the date portion of an ISO string.
+
+ :param datestr:
+ The string portion of an ISO string, without a separator
+
+ :return:
+ Returns a :class:`datetime.date` object
+ """
+ components, pos = self._parse_isodate(datestr)
+ if pos < len(datestr):
+ raise ValueError('String contains unknown ISO ' +
+ 'components: {}'.format(datestr))
+ return date(*components)
+
+ @_takes_ascii
+ def parse_isotime(self, timestr):
+ """
+ Parse the time portion of an ISO string.
+
+ :param timestr:
+ The time portion of an ISO string, without a separator
+
+ :return:
+ Returns a :class:`datetime.time` object
+ """
+ components = self._parse_isotime(timestr)
+ if components[0] == 24:
+ components[0] = 0
+ return time(*components)
+
+ @_takes_ascii
+ def parse_tzstr(self, tzstr, zero_as_utc=True):
+ """
+ Parse a valid ISO time zone string.
+
+ See :func:`isoparser.isoparse` for details on supported formats.
+
+ :param tzstr:
+ A string representing an ISO time zone offset
+
+ :param zero_as_utc:
+ Whether to return :class:`dateutil.tz.tzutc` for zero-offset zones
+
+ :return:
+ Returns :class:`dateutil.tz.tzoffset` for offsets and
+ :class:`dateutil.tz.tzutc` for ``Z`` and (if ``zero_as_utc`` is
+ specified) offsets equivalent to UTC.
+ """
+ return self._parse_tzstr(tzstr, zero_as_utc=zero_as_utc)
+
+ # Constants
+ _DATE_SEP = b'-'
+ _TIME_SEP = b':'
+ _FRACTION_REGEX = re.compile(b'[\\.,]([0-9]+)')
+
+ def _parse_isodate(self, dt_str):
+ try:
+ return self._parse_isodate_common(dt_str)
+ except ValueError:
+ return self._parse_isodate_uncommon(dt_str)
+
+ def _parse_isodate_common(self, dt_str):
+ len_str = len(dt_str)
+ components = [1, 1, 1]
+
+ if len_str < 4:
+ raise ValueError('ISO string too short')
+
+ # Year
+ components[0] = int(dt_str[0:4])
+ pos = 4
+ if pos >= len_str:
+ return components, pos
+
+ has_sep = dt_str[pos:pos + 1] == self._DATE_SEP
+ if has_sep:
+ pos += 1
+
+ # Month
+ if len_str - pos < 2:
+ raise ValueError('Invalid common month')
+
+ components[1] = int(dt_str[pos:pos + 2])
+ pos += 2
+
+ if pos >= len_str:
+ if has_sep:
+ return components, pos
+ else:
+ raise ValueError('Invalid ISO format')
+
+ if has_sep:
+ if dt_str[pos:pos + 1] != self._DATE_SEP:
+ raise ValueError('Invalid separator in ISO string')
+ pos += 1
+
+ # Day
+ if len_str - pos < 2:
+ raise ValueError('Invalid common day')
+ components[2] = int(dt_str[pos:pos + 2])
+ return components, pos + 2
+
+ def _parse_isodate_uncommon(self, dt_str):
+ if len(dt_str) < 4:
+ raise ValueError('ISO string too short')
+
+ # All ISO formats start with the year
+ year = int(dt_str[0:4])
+
+ has_sep = dt_str[4:5] == self._DATE_SEP
+
+ pos = 4 + has_sep # Skip '-' if it's there
+ if dt_str[pos:pos + 1] == b'W':
+ # YYYY-?Www-?D?
+ pos += 1
+ weekno = int(dt_str[pos:pos + 2])
+ pos += 2
+
+ dayno = 1
+ if len(dt_str) > pos:
+ if (dt_str[pos:pos + 1] == self._DATE_SEP) != has_sep:
+ raise ValueError('Inconsistent use of dash separator')
+
+ pos += has_sep
+
+ dayno = int(dt_str[pos:pos + 1])
+ pos += 1
+
+ base_date = self._calculate_weekdate(year, weekno, dayno)
+ else:
+ # YYYYDDD or YYYY-DDD
+ if len(dt_str) - pos < 3:
+ raise ValueError('Invalid ordinal day')
+
+ ordinal_day = int(dt_str[pos:pos + 3])
+ pos += 3
+
+ if ordinal_day < 1 or ordinal_day > (365 + calendar.isleap(year)):
+ raise ValueError('Invalid ordinal day' +
+ ' {} for year {}'.format(ordinal_day, year))
+
+ base_date = date(year, 1, 1) + timedelta(days=ordinal_day - 1)
+
+ components = [base_date.year, base_date.month, base_date.day]
+ return components, pos
+
+ def _calculate_weekdate(self, year, week, day):
+ """
+ Calculate the day of corresponding to the ISO year-week-day calendar.
+
+ This function is effectively the inverse of
+ :func:`datetime.date.isocalendar`.
+
+ :param year:
+ The year in the ISO calendar
+
+ :param week:
+ The week in the ISO calendar - range is [1, 53]
+
+ :param day:
+ The day in the ISO calendar - range is [1 (MON), 7 (SUN)]
+
+ :return:
+ Returns a :class:`datetime.date`
+ """
+ if not 0 < week < 54:
+ raise ValueError('Invalid week: {}'.format(week))
+
+ if not 0 < day < 8: # Range is 1-7
+ raise ValueError('Invalid weekday: {}'.format(day))
+
+ # Get week 1 for the specific year:
+ jan_4 = date(year, 1, 4) # Week 1 always has January 4th in it
+ week_1 = jan_4 - timedelta(days=jan_4.isocalendar()[2] - 1)
+
+ # Now add the specific number of weeks and days to get what we want
+ week_offset = (week - 1) * 7 + (day - 1)
+ return week_1 + timedelta(days=week_offset)
+
+ def _parse_isotime(self, timestr):
+ len_str = len(timestr)
+ components = [0, 0, 0, 0, None]
+ pos = 0
+ comp = -1
+
+ if len(timestr) < 2:
+ raise ValueError('ISO time too short')
+
+ has_sep = len_str >= 3 and timestr[2:3] == self._TIME_SEP
+
+ while pos < len_str and comp < 5:
+ comp += 1
+
+ if timestr[pos:pos + 1] in b'-+Zz':
+ # Detect time zone boundary
+ components[-1] = self._parse_tzstr(timestr[pos:])
+ pos = len_str
+ break
+
+ if comp < 3:
+ # Hour, minute, second
+ components[comp] = int(timestr[pos:pos + 2])
+ pos += 2
+ if (has_sep and pos < len_str and
+ timestr[pos:pos + 1] == self._TIME_SEP):
+ pos += 1
+
+ if comp == 3:
+ # Fraction of a second
+ frac = self._FRACTION_REGEX.match(timestr[pos:])
+ if not frac:
+ continue
+
+ us_str = frac.group(1)[:6] # Truncate to microseconds
+ components[comp] = int(us_str) * 10**(6 - len(us_str))
+ pos += len(frac.group())
+
+ if pos < len_str:
+ raise ValueError('Unused components in ISO string')
+
+ if components[0] == 24:
+ # Standard supports 00:00 and 24:00 as representations of midnight
+ if any(component != 0 for component in components[1:4]):
+ raise ValueError('Hour may only be 24 at 24:00:00.000')
+
+ return components
+
+ def _parse_tzstr(self, tzstr, zero_as_utc=True):
+ if tzstr == b'Z' or tzstr == b'z':
+ return tz.tzutc()
+
+ if len(tzstr) not in {3, 5, 6}:
+ raise ValueError('Time zone offset must be 1, 3, 5 or 6 characters')
+
+ if tzstr[0:1] == b'-':
+ mult = -1
+ elif tzstr[0:1] == b'+':
+ mult = 1
+ else:
+ raise ValueError('Time zone offset requires sign')
+
+ hours = int(tzstr[1:3])
+ if len(tzstr) == 3:
+ minutes = 0
+ else:
+ minutes = int(tzstr[(4 if tzstr[3:4] == self._TIME_SEP else 3):])
+
+ if zero_as_utc and hours == 0 and minutes == 0:
+ return tz.tzutc()
+ else:
+ if minutes > 59:
+ raise ValueError('Invalid minutes in time zone offset')
+
+ if hours > 23:
+ raise ValueError('Invalid hours in time zone offset')
+
+ return tz.tzoffset(None, mult * (hours * 60 + minutes) * 60)
+
+
+DEFAULT_ISOPARSER = isoparser()
+isoparse = DEFAULT_ISOPARSER.isoparse
generated by cgit (git 2.34.1) at 2024-12-20 17:58:17 +0000