Gradskiy.py

from itertools import groupby
from urllib.request import urlopen
from json import loads


url = 'https://ru.wikipedia.org/w/api.php?action=query&format=json&prop=revisions&rvlimit=500&titles=%D0%93%D1%80%D0%B0%D0%B4%D1%81%D0%BA%D0%B8%D0%B9,_%D0%90%D0%BB%D0%B5%D0%BA%D1%81%D0%B0%D0%BD%D0%B4%D1%80_%D0%91%D0%BE%D1%80%D0%B8%D1%81%D0%BE%D0%B2%D0%B8%D1%87'
data = loads(urlopen(url).read().decode('utf8'))

groupby_data = groupby([i['timestamp'][:10] for i in data['query']['pages']['183903']['revisions']])

for date, edits in groupby_data:
    print(date, len(list(edits)))

# 2021-11-28 153 - больше всего правок (153) - Градский умер (2021-11-28)