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pruned venvs

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2019-03-12 21:56:25 +01:00
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commit 33f0511081
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backend/venv/lib/python3.6/site-packages/iso8601/__init__.py
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from .iso8601 import *
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backend/venv/lib/python3.6/site-packages/iso8601/iso8601.py
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"""ISO 8601 date time string parsing
Basic usage:
>>> import iso8601
>>> iso8601.parse_date("2007-01-25T12:00:00Z")
datetime.datetime(2007, 1, 25, 12, 0, tzinfo=<iso8601.Utc ...>)
>>>
"""
import datetime
from decimal import Decimal
import sys
import re
__all__ = ["parse_date", "ParseError", "UTC",
"FixedOffset"]
if sys.version_info >= (3, 0, 0):
_basestring = str
else:
_basestring = basestring
# Adapted from http://delete.me.uk/2005/03/iso8601.html
ISO8601_REGEX = re.compile(
r"""
(?P<year>[0-9]{4})
(
(
(-(?P<monthdash>[0-9]{1,2}))
|
(?P<month>[0-9]{2})
(?!$) # Don't allow YYYYMM
)
(
(
(-(?P<daydash>[0-9]{1,2}))
|
(?P<day>[0-9]{2})
)
(
(
(?P<separator>[ T])
(?P<hour>[0-9]{2})
(:{0,1}(?P<minute>[0-9]{2})){0,1}
(
:{0,1}(?P<second>[0-9]{1,2})
([.,](?P<second_fraction>[0-9]+)){0,1}
){0,1}
(?P<timezone>
Z
|
(
(?P<tz_sign>[-+])
(?P<tz_hour>[0-9]{2})
:{0,1}
(?P<tz_minute>[0-9]{2}){0,1}
)
){0,1}
){0,1}
)
){0,1} # YYYY-MM
){0,1} # YYYY only
$
""",
re.VERBOSE
)
class ParseError(Exception):
"""Raised when there is a problem parsing a date string"""
if sys.version_info >= (3, 2, 0):
UTC = datetime.timezone.utc
def FixedOffset(offset_hours, offset_minutes, name):
return datetime.timezone(
datetime.timedelta(
hours=offset_hours, minutes=offset_minutes),
name)
else:
# Yoinked from python docs
ZERO = datetime.timedelta(0)
class Utc(datetime.tzinfo):
"""UTC Timezone
"""
def utcoffset(self, dt):
return ZERO
def tzname(self, dt):
return "UTC"
def dst(self, dt):
return ZERO
def __repr__(self):
return "<iso8601.Utc>"
UTC = Utc()
class FixedOffset(datetime.tzinfo):
"""Fixed offset in hours and minutes from UTC
"""
def __init__(self, offset_hours, offset_minutes, name):
self.__offset_hours = offset_hours # Keep for later __getinitargs__
self.__offset_minutes = offset_minutes # Keep for later __getinitargs__
self.__offset = datetime.timedelta(
hours=offset_hours, minutes=offset_minutes)
self.__name = name
def __eq__(self, other):
if isinstance(other, FixedOffset):
return (
(other.__offset == self.__offset)
and
(other.__name == self.__name)
)
return NotImplemented
def __getinitargs__(self):
return (self.__offset_hours, self.__offset_minutes, self.__name)
def utcoffset(self, dt):
return self.__offset
def tzname(self, dt):
return self.__name
def dst(self, dt):
return ZERO
def __repr__(self):
return "<FixedOffset %r %r>" % (self.__name, self.__offset)
def to_int(d, key, default_to_zero=False, default=None, required=True):
"""Pull a value from the dict and convert to int
:param default_to_zero: If the value is None or empty, treat it as zero
:param default: If the value is missing in the dict use this default
"""
value = d.get(key) or default
if (value in ["", None]) and default_to_zero:
return 0
if value is None:
if required:
raise ParseError("Unable to read %s from %s" % (key, d))
else:
return int(value)
def parse_timezone(matches, default_timezone=UTC):
"""Parses ISO 8601 time zone specs into tzinfo offsets
"""
if matches["timezone"] == "Z":
return UTC
# This isn't strictly correct, but it's common to encounter dates without
# timezones so I'll assume the default (which defaults to UTC).
# Addresses issue 4.
if matches["timezone"] is None:
return default_timezone
sign = matches["tz_sign"]
hours = to_int(matches, "tz_hour")
minutes = to_int(matches, "tz_minute", default_to_zero=True)
description = "%s%02d:%02d" % (sign, hours, minutes)
if sign == "-":
hours = -hours
minutes = -minutes
return FixedOffset(hours, minutes, description)
def parse_date(datestring, default_timezone=UTC):
"""Parses ISO 8601 dates into datetime objects
The timezone is parsed from the date string. However it is quite common to
have dates without a timezone (not strictly correct). In this case the
default timezone specified in default_timezone is used. This is UTC by
default.
:param datestring: The date to parse as a string
:param default_timezone: A datetime tzinfo instance to use when no timezone
is specified in the datestring. If this is set to
None then a naive datetime object is returned.
:returns: A datetime.datetime instance
:raises: ParseError when there is a problem parsing the date or
constructing the datetime instance.
"""
if not isinstance(datestring, _basestring):
raise ParseError("Expecting a string %r" % datestring)
m = ISO8601_REGEX.match(datestring)
if not m:
raise ParseError("Unable to parse date string %r" % datestring)
groups = m.groupdict()
tz = parse_timezone(groups, default_timezone=default_timezone)
groups["second_fraction"] = int(Decimal("0.%s" % (groups["second_fraction"] or 0)) * Decimal("1000000.0"))
try:
return datetime.datetime(
year=to_int(groups, "year"),
month=to_int(groups, "month", default=to_int(groups, "monthdash", required=False, default=1)),
day=to_int(groups, "day", default=to_int(groups, "daydash", required=False, default=1)),
hour=to_int(groups, "hour", default_to_zero=True),
minute=to_int(groups, "minute", default_to_zero=True),
second=to_int(groups, "second", default_to_zero=True),
microsecond=groups["second_fraction"],
tzinfo=tz,
)
except Exception as e:
raise ParseError(e)
backend/venv/lib/python3.6/site-packages/iso8601/test_iso8601.py
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# coding=UTF-8
from __future__ import absolute_import
import copy
import datetime
import pickle
import pytest
from iso8601 import iso8601
def test_iso8601_regex():
assert iso8601.ISO8601_REGEX.match("2006-10-11T00:14:33Z")
def test_fixedoffset_eq():
# See https://bitbucket.org/micktwomey/pyiso8601/issues/19
datetime.tzinfo() == iso8601.FixedOffset(2, 0, '+2:00')
def test_parse_no_timezone_different_default():
tz = iso8601.FixedOffset(2, 0, "test offset")
d = iso8601.parse_date("2007-01-01T08:00:00", default_timezone=tz)
assert d == datetime.datetime(2007, 1, 1, 8, 0, 0, 0, tz)
assert d.tzinfo == tz
def test_parse_utc_different_default():
"""Z should mean 'UTC', not 'default'.
"""
tz = iso8601.FixedOffset(2, 0, "test offset")
d = iso8601.parse_date("2007-01-01T08:00:00Z", default_timezone=tz)
assert d == datetime.datetime(2007, 1, 1, 8, 0, 0, 0, iso8601.UTC)
@pytest.mark.parametrize("invalid_date, error_string", [
("2013-10-", "Unable to parse date string"),
("2013-", "Unable to parse date string"),
("", "Unable to parse date string"),
(None, "Expecting a string"),
("wibble", "Unable to parse date string"),
("23", "Unable to parse date string"),
("131015T142533Z", "Unable to parse date string"),
("131015", "Unable to parse date string"),
("20141", "Unable to parse date string"),
("201402", "Unable to parse date string"),
("2007-06-23X06:40:34.00Z", "Unable to parse date string"), # https://code.google.com/p/pyiso8601/issues/detail?id=14
("2007-06-23 06:40:34.00Zrubbish", "Unable to parse date string"), # https://code.google.com/p/pyiso8601/issues/detail?id=14
("20114-01-03T01:45:49", "Unable to parse date string"),
])
def test_parse_invalid_date(invalid_date, error_string):
assert isinstance(invalid_date, str) or invalid_date is None # Why? 'cos I've screwed up the parametrize before :)
with pytest.raises(iso8601.ParseError) as exc:
iso8601.parse_date(invalid_date)
assert exc.errisinstance(iso8601.ParseError)
assert str(exc.value).startswith(error_string)
@pytest.mark.parametrize("valid_date,expected_datetime,isoformat", [
("2007-06-23 06:40:34.00Z", datetime.datetime(2007, 6, 23, 6, 40, 34, 0, iso8601.UTC), "2007-06-23T06:40:34+00:00"), # Handle a separator other than T
("1997-07-16T19:20+01:00", datetime.datetime(1997, 7, 16, 19, 20, 0, 0, iso8601.FixedOffset(1, 0, "+01:00")), "1997-07-16T19:20:00+01:00"), # Parse with no seconds
("2007-01-01T08:00:00", datetime.datetime(2007, 1, 1, 8, 0, 0, 0, iso8601.UTC), "2007-01-01T08:00:00+00:00"), # Handle timezone-less dates. Assumes UTC. http://code.google.com/p/pyiso8601/issues/detail?id=4
("2006-10-20T15:34:56.123+02:30", datetime.datetime(2006, 10, 20, 15, 34, 56, 123000, iso8601.FixedOffset(2, 30, "+02:30")), None),
("2006-10-20T15:34:56Z", datetime.datetime(2006, 10, 20, 15, 34, 56, 0, iso8601.UTC), "2006-10-20T15:34:56+00:00"),
("2007-5-7T11:43:55.328Z", datetime.datetime(2007, 5, 7, 11, 43, 55, 328000, iso8601.UTC), "2007-05-07T11:43:55.328000+00:00"), # http://code.google.com/p/pyiso8601/issues/detail?id=6
("2006-10-20T15:34:56.123Z", datetime.datetime(2006, 10, 20, 15, 34, 56, 123000, iso8601.UTC), "2006-10-20T15:34:56.123000+00:00"),
("2013-10-15T18:30Z", datetime.datetime(2013, 10, 15, 18, 30, 0, 0, iso8601.UTC), "2013-10-15T18:30:00+00:00"),
("2013-10-15T22:30+04", datetime.datetime(2013, 10, 15, 22, 30, 0, 0, iso8601.FixedOffset(4, 0, "+04:00")), "2013-10-15T22:30:00+04:00"), # <time>±hh:mm
("2013-10-15T1130-0700", datetime.datetime(2013, 10, 15, 11, 30, 0, 0, iso8601.FixedOffset(-7, 0, "-07:00")), "2013-10-15T11:30:00-07:00"), # <time>±hhmm
("2013-10-15T1130+0700", datetime.datetime(2013, 10, 15, 11, 30, 0, 0, iso8601.FixedOffset(+7, 0, "+07:00")), "2013-10-15T11:30:00+07:00"), # <time>±hhmm
("2013-10-15T1130+07", datetime.datetime(2013, 10, 15, 11, 30, 0, 0, iso8601.FixedOffset(+7, 0, "+07:00")), "2013-10-15T11:30:00+07:00"), # <time>±hh
("2013-10-15T1130-07", datetime.datetime(2013, 10, 15, 11, 30, 0, 0, iso8601.FixedOffset(-7, 0, "-07:00")), "2013-10-15T11:30:00-07:00"), # <time>±hh
("2013-10-15T15:00-03:30", datetime.datetime(2013, 10, 15, 15, 0, 0, 0, iso8601.FixedOffset(-3, -30, "-03:30")), "2013-10-15T15:00:00-03:30"),
("2013-10-15T183123Z", datetime.datetime(2013, 10, 15, 18, 31, 23, 0, iso8601.UTC), "2013-10-15T18:31:23+00:00"), # hhmmss
("2013-10-15T1831Z", datetime.datetime(2013, 10, 15, 18, 31, 0, 0, iso8601.UTC), "2013-10-15T18:31:00+00:00"), # hhmm
("2013-10-15T18Z", datetime.datetime(2013, 10, 15, 18, 0, 0, 0, iso8601.UTC), "2013-10-15T18:00:00+00:00"), # hh
("2013-10-15", datetime.datetime(2013, 10, 15, 0, 0, 0, 0, iso8601.UTC), "2013-10-15T00:00:00+00:00"), # YYYY-MM-DD
("20131015T18:30Z", datetime.datetime(2013, 10, 15, 18, 30, 0, 0, iso8601.UTC), "2013-10-15T18:30:00+00:00"), # YYYYMMDD
("2012-12-19T23:21:28.512400+00:00", datetime.datetime(2012, 12, 19, 23, 21, 28, 512400, iso8601.FixedOffset(0, 0, "+00:00")), "2012-12-19T23:21:28.512400+00:00"), # https://code.google.com/p/pyiso8601/issues/detail?id=21
("2006-10-20T15:34:56.123+0230", datetime.datetime(2006, 10, 20, 15, 34, 56, 123000, iso8601.FixedOffset(2, 30, "+02:30")), "2006-10-20T15:34:56.123000+02:30"), # https://code.google.com/p/pyiso8601/issues/detail?id=18
("19950204", datetime.datetime(1995, 2, 4, tzinfo=iso8601.UTC), "1995-02-04T00:00:00+00:00"), # https://code.google.com/p/pyiso8601/issues/detail?id=1
("2010-07-20 15:25:52.520701+00:00", datetime.datetime(2010, 7, 20, 15, 25, 52, 520701, iso8601.FixedOffset(0, 0, "+00:00")), "2010-07-20T15:25:52.520701+00:00"), # https://code.google.com/p/pyiso8601/issues/detail?id=17
("2010-06-12", datetime.datetime(2010, 6, 12, tzinfo=iso8601.UTC), "2010-06-12T00:00:00+00:00"), # https://code.google.com/p/pyiso8601/issues/detail?id=16
("1985-04-12T23:20:50.52-05:30", datetime.datetime(1985, 4, 12, 23, 20, 50, 520000, iso8601.FixedOffset(-5, -30, "-05:30")), "1985-04-12T23:20:50.520000-05:30"), # https://bitbucket.org/micktwomey/pyiso8601/issue/8/015-parses-negative-timezones-incorrectly
("1997-08-29T06:14:00.000123Z", datetime.datetime(1997, 8, 29, 6, 14, 0, 123, iso8601.UTC), "1997-08-29T06:14:00.000123+00:00"), # https://bitbucket.org/micktwomey/pyiso8601/issue/9/regression-parsing-microseconds
("2014-02", datetime.datetime(2014, 2, 1, 0, 0, 0, 0, iso8601.UTC), "2014-02-01T00:00:00+00:00"), # https://bitbucket.org/micktwomey/pyiso8601/issue/14/regression-yyyy-mm-no-longer-parses
("2014", datetime.datetime(2014, 1, 1, 0, 0, 0, 0, iso8601.UTC), "2014-01-01T00:00:00+00:00"), # YYYY
("1997-08-29T06:14:00,000123Z", datetime.datetime(1997, 8, 29, 6, 14, 0, 123, iso8601.UTC), "1997-08-29T06:14:00.000123+00:00"), # Use , as decimal separator
])
def test_parse_valid_date(valid_date, expected_datetime, isoformat):
parsed = iso8601.parse_date(valid_date)
assert parsed.year == expected_datetime.year
assert parsed.month == expected_datetime.month
assert parsed.day == expected_datetime.day
assert parsed.hour == expected_datetime.hour
assert parsed.minute == expected_datetime.minute
assert parsed.second == expected_datetime.second
assert parsed.microsecond == expected_datetime.microsecond
assert parsed.tzinfo == expected_datetime.tzinfo
assert parsed == expected_datetime
assert parsed.isoformat() == expected_datetime.isoformat()
copy.deepcopy(parsed) # ensure it's deep copy-able
pickle.dumps(parsed) # ensure it pickles
if isoformat:
assert parsed.isoformat() == isoformat
assert iso8601.parse_date(parsed.isoformat()) == parsed # Test round trip