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site.py
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site.py
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# -*- coding: utf-8 -*-
"""
Objects representing MediaWiki sites (wikis).
This module also includes functions to load families, which are
groups of wikis on the same topic in different languages.
"""
#
# (C) Pywikibot team, 2008-2015
#
# Distributed under the terms of the MIT license.
#
from __future__ import unicode_literals
__version__ = '$Id$'
#
import datetime
import itertools
import os
import re
import sys
import threading
import time
import json
import copy
import mimetypes
from collections import Iterable, Container, namedtuple, Mapping
from warnings import warn
import pywikibot
import pywikibot.family
from pywikibot.tools import (
itergroup, UnicodeMixin, ComparableMixin, SelfCallMixin, SelfCallString,
deprecated, deprecate_arg, deprecated_args, remove_last_args,
redirect_func, issue_deprecation_warning,
manage_wrapping, MediaWikiVersion, first_upper, normalize_username,
merge_unique_dicts,
)
from pywikibot.comms.http import get_authentication
from pywikibot.tools.ip import is_IP
from pywikibot.throttle import Throttle
from pywikibot.data import api
from pywikibot.exceptions import (
Error,
PageRelatedError,
EditConflict,
PageCreatedConflict,
PageDeletedConflict,
ArticleExistsConflict,
IsNotRedirectPage,
CircularRedirect,
InterwikiRedirectPage,
LockedPage,
CascadeLockedPage,
LockedNoPage,
NoPage,
UnknownSite,
UnknownExtension,
FamilyMaintenanceWarning,
NoUsername,
SpamfilterError,
NoCreateError,
UserBlocked,
EntityTypeUnknownException,
)
from pywikibot.echo import Notification
if sys.version_info[0] > 2:
from urllib.parse import urlencode, urlparse
basestring = (str,)
unicode = str
from itertools import zip_longest
else:
from urllib import urlencode
from urlparse import urlparse
from itertools import izip_longest as zip_longest
_logger = "wiki.site"
class PageInUse(pywikibot.Error):
"""Page cannot be reserved for writing due to existing lock."""
class LoginStatus(object):
"""Enum for Login statuses.
>>> LoginStatus.NOT_ATTEMPTED
-3
>>> LoginStatus.AS_USER
0
>>> LoginStatus.name(-3)
'NOT_ATTEMPTED'
>>> LoginStatus.name(0)
'AS_USER'
"""
NOT_ATTEMPTED = -3
IN_PROGRESS = -2
NOT_LOGGED_IN = -1
AS_USER = 0
AS_SYSOP = 1
@classmethod
def name(cls, search_value):
"""Return the name of a LoginStatus by it's value."""
for key, value in cls.__dict__.items():
if key == key.upper() and value == search_value:
return key
raise KeyError("Value %r could not be found in this enum"
% search_value)
def __init__(self, state):
"""Constructor."""
self.state = state
def __repr__(self):
"""Return internal representation."""
return 'LoginStatus(%s)' % (LoginStatus.name(self.state))
Family = redirect_func(pywikibot.family.Family.load,
target_module='pywikibot.family.Family',
old_name='Family')
class Namespace(Iterable, ComparableMixin, UnicodeMixin):
"""Namespace site data object.
This is backwards compatible with the structure of entries
in site._namespaces which were a list of::
[customised namespace,
canonical namespace name?,
namespace alias*]
If the canonical_name is not provided for a namespace between -2
and 15, the MediaWiki 1.14+ built-in names are used.
Enable use_image_name to use built-in names from MediaWiki 1.13
and earlier as the details.
Image and File are aliases of each other by default.
If only one of canonical_name and custom_name are available, both
properties will have the same value.
"""
MEDIA = -2
SPECIAL = -1
MAIN = 0
TALK = 1
USER = 2
USER_TALK = 3
PROJECT = 4
PROJECT_TALK = 5
FILE = 6
FILE_TALK = 7
MEDIAWIKI = 8
MEDIAWIKI_TALK = 9
TEMPLATE = 10
TEMPLATE_TALK = 11
HELP = 12
HELP_TALK = 13
CATEGORY = 14
CATEGORY_TALK = 15
# These are the MediaWiki built-in names for MW 1.14+.
# Namespace prefixes are always case-insensitive, but the
# canonical forms are capitalized.
canonical_namespaces = {
-2: u"Media",
-1: u"Special",
0: u"",
1: u"Talk",
2: u"User",
3: u"User talk",
4: u"Project",
5: u"Project talk",
6: u"File",
7: u"File talk",
8: u"MediaWiki",
9: u"MediaWiki talk",
10: u"Template",
11: u"Template talk",
12: u"Help",
13: u"Help talk",
14: u"Category",
15: u"Category talk",
}
def __init__(self, id, canonical_name=None, custom_name=None,
aliases=None, use_image_name=False, **kwargs):
"""Constructor.
@param custom_name: Name defined in server LocalSettings.php
@type custom_name: unicode
@param canonical_name: Canonical name
@type canonical_name: str
@param aliases: Aliases
@type aliases: list of unicode
@param use_image_name: Use 'Image' as default canonical
for 'File' namespace
@param use_image_name: bool
"""
self.id = id
if aliases is None:
self.aliases = list()
else:
self.aliases = aliases
if not canonical_name and id in self.canonical_namespaces:
if use_image_name:
if id == 6:
canonical_name = u'Image'
elif id == 7:
canonical_name = u"Image talk"
if not canonical_name:
canonical_name = self.canonical_namespaces[id]
assert custom_name is not None or canonical_name is not None, \
'Namespace needs to have at least one name'
self.custom_name = custom_name if custom_name is not None else canonical_name
self.canonical_name = canonical_name if canonical_name is not None else custom_name
if not aliases:
if id in (6, 7):
if use_image_name:
alias = u'File'
else:
alias = u'Image'
if id == 7:
alias += u' talk'
self.aliases = [alias]
else:
self.aliases = list()
else:
self.aliases = aliases
for key, value in kwargs.items():
setattr(self, key, value)
def _distinct(self):
if self.custom_name == self.canonical_name:
return [self.canonical_name] + self.aliases
else:
return [self.custom_name, self.canonical_name] + self.aliases
def _contains_lowercase_name(self, name):
"""Determine a lowercase normalised name is a name of this namespace.
@rtype: bool
"""
return name in [x.lower() for x in self._distinct()]
def __contains__(self, item):
"""Determine if item is a name of this namespace.
The comparison is case insensitive, and item may have a single
colon on one or both sides of the name.
@param item: name to check
@type item: basestring
@rtype: bool
"""
if item == '' and self.id == 0:
return True
name = Namespace.normalize_name(item)
if not name:
return False
return self._contains_lowercase_name(name.lower())
def __len__(self):
"""Obtain length of the iterable."""
if self.custom_name == self.canonical_name:
return len(self.aliases) + 1
else:
return len(self.aliases) + 2
def __iter__(self):
"""Return an iterator."""
return iter(self._distinct())
def __getitem__(self, index):
"""Obtain an item from the iterable."""
if self.custom_name != self.canonical_name:
if index == 0:
return self.custom_name
else:
index -= 1
if index == 0:
return self.canonical_name
else:
return self.aliases[index - 1]
@staticmethod
def _colons(id, name):
"""Return the name with required colons, depending on the ID."""
if id == 0:
return u':'
elif id in (6, 14):
return u':' + name + u':'
else:
return u'' + name + u':'
def __str__(self):
"""Return the canonical string representation."""
return self.canonical_prefix()
def __unicode__(self):
"""Return the custom string representation."""
return self.custom_prefix()
def canonical_prefix(self):
"""Return the canonical name with required colons."""
return Namespace._colons(self.id, self.canonical_name)
def custom_prefix(self):
"""Return the custom name with required colons."""
return Namespace._colons(self.id, self.custom_name)
def __int__(self):
"""Return the namespace id."""
return self.id
def __index__(self):
"""Return the namespace id."""
return self.id
def __hash__(self):
"""Return the namespace id."""
return self.id
def __eq__(self, other):
"""Compare whether two namespace objects are equal."""
if isinstance(other, int):
return self.id == other
elif isinstance(other, Namespace):
return self.id == other.id
elif isinstance(other, basestring):
return other in self
def __ne__(self, other):
"""Compare whether two namespace objects are not equal."""
return not self.__eq__(other)
def __mod__(self, other):
"""Apply modulo on the namespace id."""
return self.id.__mod__(other)
def __sub__(self, other):
"""Apply subtraction on the namespace id."""
return -(other) + self.id
def __add__(self, other):
"""Apply addition on the namespace id."""
return other + self.id
def _cmpkey(self):
"""Return the ID as a comparison key."""
return self.id
def __repr__(self):
"""Return a reconstructable representation."""
standard_attr = ['id', 'custom_name', 'canonical_name', 'aliases']
extra = [(key, self.__dict__[key])
for key in sorted(self.__dict__)
if key not in standard_attr]
if extra:
kwargs = ', ' + ', '.join([key + '=' + repr(value)
for (key, value) in
extra])
else:
kwargs = ''
return '%s(id=%d, custom_name=%r, canonical_name=%r, aliases=%r%s)' \
% (self.__class__.__name__, self.id, self.custom_name,
self.canonical_name, self.aliases, kwargs)
@staticmethod
def default_case(id, default_case=None):
"""Return the default fixed case value for the namespace ID."""
# https://www.mediawiki.org/wiki/Manual:$wgCapitalLinkOverrides#Warning
if id > 0 and id % 2 == 1: # the talk ns has the non-talk ns case
id -= 1
if id in (-1, 2, 8):
return 'first-letter'
else:
return default_case
@classmethod
def builtin_namespaces(cls, use_image_name=False, case='first-letter'):
"""Return a dict of the builtin namespaces."""
return dict((i, cls(i, use_image_name=use_image_name,
case=cls.default_case(i, case)))
for i in range(-2, 16))
@staticmethod
def normalize_name(name):
"""Remove an optional colon before and after name.
TODO: reject illegal characters.
"""
if name == '':
return ''
parts = name.split(':', 4)
count = len(parts)
if count > 3:
return False
elif count == 3:
if parts[2] != '':
return False
# Discard leading colon
if count >= 2 and parts[0] == '' and parts[1]:
return parts[1].strip()
elif parts[0]:
return parts[0].strip()
return False
@classmethod
@deprecated('NamespacesDict.lookup_name')
def lookup_name(cls, name, namespaces=None):
"""Find the Namespace for a name.
@param name: Name of the namespace.
@type name: basestring
@param namespaces: namespaces to search
default: builtins only
@type namespaces: dict of Namespace
@return: Namespace or None
"""
if not namespaces:
namespaces = cls.builtin_namespaces()
return NamespacesDict._lookup_name(name, namespaces)
@staticmethod
@deprecated('NamespacesDict.resolve')
def resolve(identifiers, namespaces=None):
"""
Resolve namespace identifiers to obtain Namespace objects.
Identifiers may be any value for which int() produces a valid
namespace id, except bool, or any string which Namespace.lookup_name
successfully finds. A numerical string is resolved as an integer.
@param identifiers: namespace identifiers
@type identifiers: iterable of basestring or Namespace key,
or a single instance of those types
@param namespaces: namespaces to search (default: builtins only)
@type namespaces: dict of Namespace
@return: list of Namespace objects in the same order as the
identifiers
@raises KeyError: a namespace identifier was not resolved
@raises TypeError: a namespace identifier has an inappropriate
type such as NoneType or bool
"""
if not namespaces:
namespaces = Namespace.builtin_namespaces()
return NamespacesDict._resolve(identifiers, namespaces)
class NamespacesDict(Mapping, SelfCallMixin):
"""
An immutable dictionary containing the Namespace instances.
It adds a deprecation message when called as the 'namespaces' property of
APISite was callable.
"""
_own_desc = 'the namespaces property'
def __init__(self, namespaces):
"""Create new dict using the given namespaces."""
super(NamespacesDict, self).__init__()
self._namespaces = namespaces
def __iter__(self):
"""Iterate over all namespaces."""
return iter(self._namespaces)
def __getitem__(self, key):
"""
Get the namespace with the given key.
@param key: namespace key
@type key: Namespace, int or str
@rtype: Namespace
"""
if isinstance(key, (Namespace, int)):
return self._namespaces[key]
else:
namespace = self.lookup_name(key)
if namespace:
return namespace
return super(NamespacesDict, self).__getitem__(key)
def __getattr__(self, attr):
"""
Get the namespace with the given key.
@param key: namespace key
@type key: Namespace, int or str
@rtype: Namespace
"""
# lookup_name access _namespaces
if attr.isupper():
if attr == 'MAIN':
return self[0]
namespace = self.lookup_name(attr)
if namespace:
return namespace
return self.__getattribute__(attr)
def __len__(self):
"""Get the number of namespaces."""
return len(self._namespaces)
def lookup_name(self, name):
"""
Find the Namespace for a name also checking aliases.
@param name: Name of the namespace.
@type name: basestring
@return: Namespace or None
"""
return self._lookup_name(name, self._namespaces)
# Temporary until Namespace.lookup_name can be removed
@staticmethod
def _lookup_name(name, namespaces):
name = Namespace.normalize_name(name)
if name is False:
return None
name = name.lower()
for namespace in namespaces.values():
if namespace._contains_lowercase_name(name):
return namespace
return None
def resolve(self, identifiers):
"""
Resolve namespace identifiers to obtain Namespace objects.
Identifiers may be any value for which int() produces a valid
namespace id, except bool, or any string which Namespace.lookup_name
successfully finds. A numerical string is resolved as an integer.
@param identifiers: namespace identifiers
@type identifiers: iterable of basestring or Namespace key,
or a single instance of those types
@return: list of Namespace objects in the same order as the
identifiers
@raises KeyError: a namespace identifier was not resolved
@raises TypeError: a namespace identifier has an inappropriate
type such as NoneType or bool
"""
return self._resolve(identifiers, self._namespaces)
# Temporary until Namespace.resolve can be removed
@staticmethod
def _resolve(identifiers, namespaces):
if isinstance(identifiers, (basestring, Namespace)):
identifiers = [identifiers]
else:
# convert non-iterators to single item list
try:
iter(identifiers)
except TypeError:
identifiers = [identifiers]
# lookup namespace names, and assume anything else is a key.
# int(None) raises TypeError; however, bool needs special handling.
result = [NotImplemented if isinstance(ns, bool) else
NamespacesDict._lookup_name(ns, namespaces)
if isinstance(ns, basestring) and
not ns.lstrip('-').isdigit() else
namespaces[int(ns)] if int(ns) in namespaces
else None
for ns in identifiers]
if NotImplemented in result:
raise TypeError('identifiers contains inappropriate types: %r'
% identifiers)
# Namespace.lookup_name returns None if the name is not recognised
if None in result:
raise KeyError(u'Namespace identifier(s) not recognised: %s'
% u','.join([str(identifier) for identifier, ns
in zip(identifiers, result)
if ns is None]))
return result
class _IWEntry(object):
"""An entry of the _InterwikiMap with a lazy loading site."""
def __init__(self, local, url):
self._site = None
self.local = local
self.url = url
@property
def site(self):
if self._site is None:
try:
self._site = pywikibot.Site(url=self.url)
except Exception as e:
self._site = e
return self._site
class _InterwikiMap(object):
"""A representation of the interwiki map of a site."""
def __init__(self, site):
"""Create an empty uninitalized interwiki map for the given site."""
super(_InterwikiMap, self).__init__()
self._site = site
self._map = None
def reset(self):
"""Remove all mappings to force building a new mapping."""
self._map = None
@property
def _iw_sites(self):
"""Fill the interwikimap cache with the basic entries."""
# _iw_sites is a local cache to return a APISite instance depending
# on the interwiki prefix of that site
if self._map is None:
self._map = dict((iw['prefix'], _IWEntry('local' in iw, iw['url']))
for iw in self._site.siteinfo['interwikimap'])
return self._map
def __getitem__(self, prefix):
"""Return the site, locality and url for the requested prefix."""
if prefix not in self._iw_sites:
raise KeyError(u"'{0}' is not an interwiki prefix.".format(prefix))
if isinstance(self._iw_sites[prefix].site, BaseSite):
return self._iw_sites[prefix]
elif isinstance(self._iw_sites[prefix].site, Exception):
raise self._iw_sites[prefix].site
else:
raise TypeError('_iw_sites[%s] is wrong type: %s'
% (prefix, type(self._iw_sites[prefix].site)))
def get_by_url(self, url):
"""Return a set of prefixes applying to the URL."""
return set(prefix for prefix, iw_entry in self._iw_sites
if iw_entry.url == url)
class BaseSite(ComparableMixin):
"""Site methods that are independent of the communication interface."""
def __init__(self, code, fam=None, user=None, sysop=None):
"""
Constructor.
@param code: the site's language code
@type code: str
@param fam: wiki family name (optional)
@type fam: str or Family
@param user: bot user name (optional)
@type user: str
@param sysop: sysop account user name (optional)
@type sysop: str
"""
if code.lower() != code:
# Note the Site function in __init__ also emits a UserWarning
# for this condition, showing the callers file and line no.
pywikibot.log(u'BaseSite: code "%s" converted to lowercase' % code)
code = code.lower()
if not all(x in pywikibot.family.CODE_CHARACTERS for x in str(code)):
pywikibot.log(u'BaseSite: code "%s" contains invalid characters'
% code)
self.__code = code
if isinstance(fam, basestring) or fam is None:
self.__family = pywikibot.family.Family.load(fam)
else:
self.__family = fam
self.obsolete = False
# if we got an outdated language code, use the new one instead.
if self.__code in self.__family.obsolete:
if self.__family.obsolete[self.__code] is not None:
self.__code = self.__family.obsolete[self.__code]
# Note the Site function in __init__ emits a UserWarning
# for this condition, showing the callers file and line no.
pywikibot.log(u'Site %s instantiated using code %s'
% (self, code))
else:
# no such language anymore
self.obsolete = True
pywikibot.log(u'Site %s instantiated and marked "obsolete" '
u'to prevent access' % self)
elif self.__code not in self.languages():
if self.__family.name in list(self.__family.langs.keys()) and \
len(self.__family.langs) == 1:
self.__code = self.__family.name
if self.__family == pywikibot.config.family \
and code == pywikibot.config.mylang:
pywikibot.config.mylang = self.__code
warn(u'Global configuration variable "mylang" changed to '
u'"%s" while instantiating site %s'
% (self.__code, self), UserWarning)
else:
raise UnknownSite(u"Language '%s' does not exist in family %s"
% (self.__code, self.__family.name))
self._username = [normalize_username(user), normalize_username(sysop)]
self.use_hard_category_redirects = (
self.code in self.family.use_hard_category_redirects)
# following are for use with lock_page and unlock_page methods
self._pagemutex = threading.Lock()
self._locked_pages = []
@deprecated
def has_api(self):
"""Return whether this site has an API."""
return False
@property
@deprecated("APISite.siteinfo['case'] or Namespace.case == 'case-sensitive'")
def nocapitalize(self):
"""
Return whether this site's default title case is case-sensitive.
DEPRECATED.
"""
return self.siteinfo['case'] == 'case-sensitive'
@property
def throttle(self):
"""Return this Site's throttle. Initialize a new one if needed."""
if not hasattr(self, "_throttle"):
self._throttle = Throttle(self, multiplydelay=True)
return self._throttle
@property
def family(self):
"""The Family object for this Site's wiki family."""
return self.__family
@property
def code(self):
"""The identifying code for this Site.
By convention, this is usually an ISO language code, but it does
not have to be.
"""
return self.__code
@property
def lang(self):
"""The ISO language code for this Site.
Presumed to be equal to the wiki prefix, but this can be overridden.
"""
return self.__code
@property
def doc_subpage(self):
"""Return the documentation subpage for this Site.
@return: tuple
"""
if not hasattr(self, '_doc_subpage'):
try:
doc, codes = self.family.doc_subpages.get('_default', ((), []))
if self.code not in codes:
try:
doc = self.family.doc_subpages[self.code]
# Language not defined in doc_subpages in x_family.py file
# It will use default for the family.
# should it just raise an Exception and fail?
# this will help to check the dictionary ...
except KeyError:
warn(u"Site {0} has no language defined in "
u"doc_subpages dict in {1}_family.py file"
.format(self, self.family.name),
FamilyMaintenanceWarning, 2)
# doc_subpages not defined in x_family.py file
except AttributeError:
doc = () # default
warn(u"Site {0} has no doc_subpages dict in {1}_family.py file"
.format(self, self.family.name),
FamilyMaintenanceWarning, 2)
self._doc_subpage = doc
return self._doc_subpage
def _cmpkey(self):
"""Perform equality and inequality tests on Site objects."""
return (self.family.name, self.code)
def __getstate__(self):
"""Remove Lock based classes before pickling."""
new = self.__dict__.copy()
del new['_pagemutex']
if '_throttle' in new:
del new['_throttle']
# site cache contains exception information, which cant be pickled
if '_iw_sites' in new:
del new['_iw_sites']
return new
def __setstate__(self, attrs):
"""Restore things removed in __getstate__."""
self.__dict__.update(attrs)
self._pagemutex = threading.Lock()
def user(self):
"""Return the currently-logged in bot user, or None."""
if self.logged_in(True):
return self._username[True]
elif self.logged_in(False):
return self._username[False]
def username(self, sysop=False):
"""Return the username/sysopname used for the site."""
return self._username[sysop]
def __getattr__(self, attr):
"""Delegate undefined methods calls to the Family object."""
if hasattr(self.__class__, attr):
return getattr(self.__class__, attr)
try:
method = getattr(self.family, attr)
f = lambda *args, **kwargs: method(self.code, *args, **kwargs)
if hasattr(method, "__doc__"):
f.__doc__ = method.__doc__
return f
except AttributeError:
raise AttributeError("%s instance has no attribute '%s'"
% (self.__class__.__name__, attr))
def __str__(self):
"""Return string representing this Site's name and code."""
return self.family.name + ':' + self.code
@property
def sitename(self):
"""String representing this Site's name and code."""
return SelfCallString(self.__str__())
def __repr__(self):
"""Return internal representation."""
return 'Site("%s", "%s")' % (self.code, self.family.name)
def __hash__(self):
"""Return hashable key."""
return hash(repr(self))
def languages(self):
"""Return list of all valid language codes for this site's Family."""
return list(self.family.langs.keys())
def validLanguageLinks(self):
"""Return list of language codes that can be used in interwiki links."""
nsnames = [name for name in self.namespaces.values()]
return [lang for lang in self.languages()
if first_upper(lang) not in nsnames]
def _interwiki_urls(self):
site_paths = [self.path()] * 3
site_paths[1] += '/'
site_paths[2] += '?title='
site_paths += [self.article_path]
return site_paths
def interwiki(self, prefix):
"""
Return the site for a corresponding interwiki prefix.
@raise SiteDefinitionError: if the url given in the interwiki table
doesn't match any of the existing families.
@raise KeyError: if the prefix is not an interwiki prefix.
"""
return self._interwikimap[prefix].site
def interwiki_prefix(self, site):
"""
Return the interwiki prefixes going to that site.
The interwiki prefixes are ordered first by length (shortest first)
and then alphabetically. L{interwiki(prefix)} is not guaranteed to equal
C{site} (i.e. the parameter passed to this function).
@param site: The targeted site, which might be it's own.
@type site: L{BaseSite}
@return: The interwiki prefixes
@rtype: list (guaranteed to be not empty)
@raise KeyError: if there is no interwiki prefix for that site.
"""
assert site is not None, 'Site must not be None'
prefixes = set()
for url in site._interwiki_urls():
prefixes.update(self._interwikimap.get_by_url(url))
if not prefixes:
raise KeyError(
u"There is no interwiki prefix to '{0}'".format(site))
return sorted(prefixes, key=lambda p: (len(p), p))
def local_interwiki(self, prefix):
"""
Return whether the interwiki prefix is local.
A local interwiki prefix is handled by the target site like a normal
link. So if that link also contains an interwiki link it does follow
it as long as it's a local link.
@raise SiteDefinitionError: if the url given in the interwiki table
doesn't match any of the existing families.
@raise KeyError: if the prefix is not an interwiki prefix.
"""
return self._interwikimap[prefix].local
@deprecated('APISite.namespaces.lookup_name')
def ns_index(self, namespace):
"""
Return the Namespace for a given namespace name.
@param namespace: name
@type namespace: unicode
@return: The matching Namespace object on this Site
@rtype: Namespace, or None if invalid
"""
return self.namespaces.lookup_name(namespace)
@deprecated('APISite.namespaces.lookup_name')
def getNamespaceIndex(self, namespace):
"""DEPRECATED: Return the Namespace for a given namespace name."""
return self.namespaces.lookup_name(namespace)
def _build_namespaces(self):
"""Create default namespaces."""
use_image_name = MediaWikiVersion(self.version()) < MediaWikiVersion("1.14")
return Namespace.builtin_namespaces(use_image_name)
@property
def namespaces(self):
"""Return dict of valid namespaces on this wiki."""
if not hasattr(self, '_namespaces'):
self._namespaces = NamespacesDict(self._build_namespaces())
return self._namespaces
def ns_normalize(self, value):
"""Return canonical local form of namespace name.
@param value: A namespace name
@type value: unicode
"""
index = self.namespaces.lookup_name(value)
return self.namespace(index)
# for backwards-compatibility
normalizeNamespace = redirect_func(ns_normalize,
old_name='normalizeNamespace',
class_name='BaseSite')
@remove_last_args(('default', ))
def redirect(self):
"""Return list of localized redirect tags for the site."""
return [u"REDIRECT"]