I'm afraid I don't have much info on this except for the outcome.
pwb.py interwiki -wiktionary -async -auto -cleanup -pt:1 -namespace:0 -cat:!Entrada_(Polonês)
[........] [........] Retrieving 50 pages from wiktionary:cy. NOTE: [[cy:Liechtenstein]] does not exist. Skipping. NOTE: [[cy:liga]] does not exist. Skipping. NOTE: [[cy:limfocyt]] does not exist. Skipping. NOTE: [[cy:limnologia]] does not exist. Skipping. NOTE: [[cy:limona]] does not exist. Skipping. NOTE: [[cy:lipa]] does not exist. Skipping. NOTE: [[cy:lipiec]] does not exist. Skipping. NOTE: [[cy:lisica]] does not exist. Skipping. NOTE: [[cy:lista]] does not exist. Skipping. NOTE: [[cy:listopad]] does not exist. Skipping. NOTE: [[cy:liszajec]] does not exist. Skipping. NOTE: [[cy:litera]] does not exist. Skipping. NOTE: [[cy:literatura]] does not exist. Skipping. NOTE: [[cy:litografia]] does not exist. Skipping. NOTE: [[cy:liturgia]] does not exist. Skipping. NOTE: [[cy:Litwa]] does not exist. Skipping. NOTE: [[cy:livermorium]] does not exist. Skipping. NOTE: [[cy:loch]] does not exist. Skipping. NOTE: [[cy:lorens]] does not exist. Skipping. NOTE: [[cy:lot]] does not exist. Skipping. NOTE: [[cy:loteria]] does not exist. Skipping. NOTE: [[cy:lotnisko]] does not exist. Skipping. NOTE: [[cy:Ludowa Republika Bangladeszu]] does not exist. Skipping. NOTE: [[cy:lufa]] does not exist. Skipping. NOTE: [[cy:lupa]] does not exist. Skipping. NOTE: [[cy:lura]] does not exist. Skipping. NOTE: [[cy:lutet]] does not exist. Skipping. NOTE: [[cy:ma]] does not exist. Skipping. NOTE: [[cy:Macedonia]] does not exist. Skipping. NOTE: [[cy:magia]] does not exist. Skipping. NOTE: [[cy:magma]] does not exist. Skipping. NOTE: [[cy:magnetyzm]] does not exist. Skipping. NOTE: [[cy:magnez]] does not exist. Skipping. NOTE: [[cy:major]] does not exist. Skipping. NOTE: [[cy:mala]] does not exist. Skipping. NOTE: [[cy:malaria]] does not exist. Skipping. NOTE: [[cy:Malediwy]] does not exist. Skipping. NOTE: [[cy:Malezja]] does not exist. Skipping. NOTE: [[cy:Mali]] does not exist. Skipping. NOTE: [[cy:malina]] does not exist. Skipping. NOTE: [[cy:mandala]] does not exist. Skipping. NOTE: [[cy:Manfred]] does not exist. Skipping. NOTE: [[cy:mango]] does not exist. Skipping. NOTE: [[cy:manicure]] does not exist. Skipping. NOTE: [[cy:mara]] does not exist. Skipping. Retrieving 50 pages from wiktionary:ay. Dump pt (wiktionary) appended. Traceback (most recent call last): File "C:\Work\pywikipedia\pwb.py", line 239, in <module> if not main(): File "C:\Work\pywikipedia\pwb.py", line 233, in main run_python_file(filename, [filename] + args, argvu, file_package) File "C:\Work\pywikipedia\pwb.py", line 111, in run_python_file main_mod.__dict__) File ".\scripts\interwiki.py", line 2641, in <module> main() File ".\scripts\interwiki.py", line 2616, in main bot.run() File ".\scripts\interwiki.py", line 2360, in run self.queryStep() File ".\scripts\interwiki.py", line 2333, in queryStep self.oneQuery() File ".\scripts\interwiki.py", line 2323, in oneQuery for page in gen: File "C:\Work\pywikipedia\pywikibot\site.py", line 2886, in preloadpages api.update_page(page, pagedata, rvgen.props) File "C:\Work\pywikipedia\pywikibot\data\api.py", line 3080, in update_page source=page.site) File "C:\Work\pywikipedia\pywikibot\page.py", line 5089, in langlinkUnsafe ns = link._site.namespaces.lookup_name(ns) File "C:\Work\pywikipedia\pywikibot\site.py", line 879, in namespaces self._namespaces = NamespacesDict(self._build_namespaces()) File "C:\Work\pywikipedia\pywikibot\site.py", line 2338, in _build_namespaces is_mw114 = MediaWikiVersion(self.version()) >= MediaWikiVersion('1.14') File "C:\Work\pywikipedia\pywikibot\site.py", line 2445, in version version = self.siteinfo.get('generator', expiry=1).split(' ')[1] File "C:\Work\pywikipedia\pywikibot\site.py", line 1468, in get preloaded = self._get_general(key, expiry) File "C:\Work\pywikipedia\pywikibot\site.py", line 1414, in _get_general default_info = self._get_siteinfo(props, expiry) File "C:\Work\pywikipedia\pywikibot\site.py", line 1340, in _get_siteinfo data = request.submit() File "C:\Work\pywikipedia\pywikibot\data\api.py", line 2288, in submit self._data = super(CachedRequest, self).submit() File "C:\Work\pywikipedia\pywikibot\data\api.py", line 1886, in submit self.site.is_oauth_token_available()): # work around T108182 File "C:\Work\pywikipedia\pywikibot\site.py", line 1799, in is_oauth_token_ava ilable auth_token = get_authentication(self.base_url('')) File "C:\Work\pywikipedia\pywikibot\site.py", line 747, in <lambda> f = lambda *args, **kwargs: method(self.code, *args, **kwargs) File "C:\Work\pywikipedia\pywikibot\family.py", line 1064, in base_url host = self.ssl_hostname(code) File "C:\Work\pywikipedia\pywikibot\family.py", line 1041, in ssl_hostname return self.hostname(code) File "C:\Work\pywikipedia\pywikibot\family.py", line 1037, in hostname return self.langs[code] KeyError: u'ik' <type 'exceptions.KeyError'> CRITICAL: Closing network session.
I will try to find out what page is causing the problem...