/usr/share/pyshared/weboob/tools/date.py is in python-weboob-core 0.g-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 | # -*- coding: utf-8 -*-
# Copyright(C) 2010-2013 Romain Bignon
#
# This file is part of weboob.
#
# weboob is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# weboob is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with weboob. If not, see <http://www.gnu.org/licenses/>.
from datetime import date as real_date, datetime as real_datetime, timedelta
import dateutil.parser
import time
import re
try:
from dateutil import tz
except ImportError:
raise ImportError('Please install python-dateutil')
__all__ = ['local2utc', 'utc2local', 'LinearDateGuesser', 'date', 'datetime', 'new_date', 'new_datetime']
def local2utc(dateobj):
dateobj = dateobj.replace(tzinfo=tz.tzlocal())
dateobj = dateobj.astimezone(tz.tzutc())
return dateobj
def utc2local(dateobj):
dateobj = dateobj.replace(tzinfo=tz.tzutc())
dateobj = dateobj.astimezone(tz.tzlocal())
return dateobj
class date(real_date):
def strftime(self, fmt):
return strftime(self, fmt)
class datetime(real_datetime):
def strftime(self, fmt):
return strftime(self, fmt)
def combine(self, date, time):
return datetime(date.year, date.month, date.day, time.hour, time.minute, time.microsecond, time.tzinfo)
def date(self):
return date(self.year, self.month, self.day)
def new_date(d):
""" Generate a safe date from a datetime.date object """
return date(d.year, d.month, d.day)
def new_datetime(d):
"""
Generate a safe datetime from a datetime.date or datetime.datetime object
"""
kw = [d.year, d.month, d.day]
if isinstance(d, real_datetime):
kw.extend([d.hour, d.minute, d.second, d.microsecond, d.tzinfo])
return datetime(*kw)
# No support for strftime's "%s" or "%y".
# Allowed if there's an even number of "%"s because they are escaped.
_illegal_formatting = re.compile(r"((^|[^%])(%%)*%[sy])")
def _findall(text, substr):
# Also finds overlaps
sites = []
i = 0
while True:
j = text.find(substr, i)
if j == -1:
break
sites.append(j)
i = j+1
return sites
def strftime(dt, fmt):
if dt.year >= 1900:
return super(type(dt), dt).strftime(fmt)
illegal_formatting = _illegal_formatting.search(fmt)
if illegal_formatting:
raise TypeError("strftime of dates before 1900 does not handle" + illegal_formatting.group(0))
year = dt.year
# For every non-leap year century, advance by
# 6 years to get into the 28-year repeat cycle
delta = 2000 - year
off = 6*(delta // 100 + delta // 400)
year = year + off
# Move to around the year 2000
year = year + ((2000 - year)//28)*28
timetuple = dt.timetuple()
s1 = time.strftime(fmt, (year,) + timetuple[1:])
sites1 = _findall(s1, str(year))
s2 = time.strftime(fmt, (year+28,) + timetuple[1:])
sites2 = _findall(s2, str(year+28))
sites = []
for site in sites1:
if site in sites2:
sites.append(site)
s = s1
syear = "%4d" % (dt.year,)
for site in sites:
s = s[:site] + syear + s[site+4:]
return s
class LinearDateGuesser(object):
"""
The aim of this class is to guess the exact date object from
a day and a month, but not a year.
It works with a start date (default is today), and all dates must be
sorted from recent to older.
"""
def __init__(self, current_date=None, date_max_bump=timedelta(7)):
self.date_max_bump = date_max_bump
if current_date is None:
current_date = date.today()
self.current_date = current_date
def try_assigning_year(self, day, month, start_year, max_year):
"""
Tries to create a date object with day, month and start_year and returns
it.
If it fails due to the year not matching the day+month combination
(i.e. due to a ValueError -- TypeError and OverflowError are not
handled), the previous or next years are tried until max_year is
reached.
In case initialization still fails with max_year, this function raises
a ValueError.
"""
while True:
try:
return date(start_year, month, day)
except ValueError as e:
if start_year == max_year:
raise e
start_year += cmp(max_year, start_year)
def set_current_date(self, current_date):
self.current_date = current_date
def guess_date(self, day, month, change_current_date=True):
""" Returns a date object built from a given day/month pair. """
today = self.current_date
# The website only provides dates using the 'DD/MM' string, so we have to
# determine the most possible year by ourselves. This implies tracking
# the current date.
# However, we may also encounter "bumps" in the dates, e.g. "12/11,
# 10/11, 10/11, 12/11, 09/11", so we have to be, well, quite tolerant,
# by accepting dates in the near future (say, 7 days) of the current
# date. (Please, kill me...)
# We first try to keep the current year
naively_parsed_date = self.try_assigning_year(day, month, today.year, today.year - 5)
if (naively_parsed_date.year != today.year):
# we most likely hit a 29/02 leading to a change of year
if change_current_date:
self.set_current_date(naively_parsed_date)
return naively_parsed_date
if (naively_parsed_date > today + self.date_max_bump):
# if the date ends up too far in the future, consider it actually
# belongs to the previous year
parsed_date = date(today.year - 1, month, day)
if change_current_date:
self.set_current_date(parsed_date)
elif (naively_parsed_date > today and naively_parsed_date <= today + self.date_max_bump):
# if the date is in the near future, consider it is a bump
parsed_date = naively_parsed_date
# do not keep it as current date though
else:
# if the date is in the past, as expected, simply keep it
parsed_date = naively_parsed_date
# and make it the new current date
if change_current_date:
self.set_current_date(parsed_date)
return parsed_date
DATE_TRANSLATE_FR = [(re.compile(u'janvier', re.I), u'january'),
(re.compile(u'février', re.I), u'february'),
(re.compile(u'mars', re.I), u'march'),
(re.compile(u'avril', re.I), u'april'),
(re.compile(u'mai', re.I), u'may'),
(re.compile(u'juin', re.I), u'june'),
(re.compile(u'juillet', re.I), u'july'),
(re.compile(u'août', re.I), u'august'),
(re.compile(u'septembre', re.I), u'september'),
(re.compile(u'octobre', re.I), u'october'),
(re.compile(u'novembre', re.I), u'november'),
(re.compile(u'décembre', re.I), u'december'),
(re.compile(u'lundi', re.I), u'monday'),
(re.compile(u'mardi', re.I), u'tuesday'),
(re.compile(u'mercredi', re.I), u'wednesday'),
(re.compile(u'jeudi', re.I), u'thursday'),
(re.compile(u'vendredi', re.I), u'friday'),
(re.compile(u'samedi', re.I), u'saturday'),
(re.compile(u'dimanche', re.I), u'sunday')]
def parse_french_date(date):
for fr, en in DATE_TRANSLATE_FR:
date = fr.sub(en, date)
return dateutil.parser.parse(date)
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