Deleting non notable items.

deleter.py

import pywikibot
import re
import random
import sys
from pywikibot.data.api import Request
wikidata = pywikibot.Site('wikidata', 'wikidata')
wikidata.login()
repo = wikidata.data_repository()
report_page = pywikibot.Page(wikidata, 'User:Pasleim/Items for deletion/Page deleted')

def check_history(item):
    sitelinks_added = []
    for rev in item.revisions():
        if rev['comment'].startswith('/* wbsetsitelink-add:1|'):
            sitelinks_added.append(rev['comment'])
    for comment in sitelinks_added:
        comment = comment.split('/* wbsetsitelink-add:1|')[1]
        db_name = comment.split(' */')[0].strip()
        article_title = ' */'.join(comment.split(' */')[1:]).strip()
        client_site = wikidata.fromDBName(db_name)
        if not article_title:
            return False
        page = pywikibot.Page(client_site, article_title)
        try:
            page.get()
        except:
            continue
        else:
            return False
    return True


for case in re.findall(r'\{\{Q\|Q?(\d+)\}\}\s*\(.+?\)\s*\|\|\s*\d\s*\|\|\s*0\s*\|\|\s*0\s*\|\|\s*\[\[(.+?)\]\]', report_page.get()):
    qid = case[0]
    wikipedia_title = '[[{}]]'.format(case[1])
    item = pywikibot.ItemPage(repo, 'Q' + qid)
    try:
        item.get()
    except KeyboardInterrupt:
        raise
    except:
        continue
    if item.sitelinks:
        continue
    if list(item.claims):
        shouldSkip = False
        for claim in item.claims:
            if claim not in ['P31']:
                shouldSkip = True
                break
        if shouldSkip:
            continue
    backlinked = False
    for backlink in item.backlinks():
        if backlink.namespace() not in [0, 120]:
            continue
        backlinked = True
    if backlinked:
        continue
    if not check_history(item):
        continue
    #params = {
    #    'action': 'query',
    #    'list': 'wbsubscribers',
    #    'wblsentities':'Q' + qid
    #}
    #r = pywikibot.data.api.Request(parameters=params, site=wikidata)
    #data = r.submit()['query']['subscribers']['Q' + qid]['subscribers']
    #if data:
    #    print('Subscribers found','Q' + qid, data)
    #    continue
    summary = 'Bot: Automatic deletion of an item that used to have a sitelink that is deleted and doesn\'t have any good statement, no backlink in main namespace and no sitelinks.'
    if item.labels:
        one_label = random.choice(list(item.labels.values()))
        summary += ' Label: "' + one_label + '"'
    summary += ' The last deleted sitelink: ' + wikipedia_title
    item.delete(summary, prompt=False)