参考：https://cartman0.hatenablog.com/entry/2017/10/18/%E3%81%AF%E3%81%A6%E3%81%AA%E3%83%96%E3%83%AD%E3%82%B0API%E3%81%A7%E8%A8%98%E4%BA%8B%E4%B8%80%E8%A6%A7%E3%82%92%E5%8F%96%E5%BE%97

get_hatena_blog_year_info.py

import requests
import bs4
import re
import time
import datetime
import dateutil.parser

hatena_id = "はてなID"
blog_id = "ブログID"
password = "APIキー"

def get_collection_uri(hatena_id, blog_id, password):
    service_doc_uri = "https://blog.hatena.ne.jp/{hatena_id:}/{blog_id:}/atom".format(hatena_id=hatena_id, blog_id=blog_id)
    res_service_doc = requests.get(url=service_doc_uri, auth=(hatena_id, password))
    if res_service_doc.ok:
        soup_servicedoc_xml = bs4.BeautifulSoup(res_service_doc.content, features="xml")
        collection_uri = soup_servicedoc_xml.collection.get("href")
        return collection_uri

    return False

collection_uri = get_collection_uri(hatena_id, blog_id, password)
entry_id_list = []
category = {}
dt_now = datetime.datetime.now()
entry_count = 0

MAX_ITERATER_NUM = 50
for i in range(MAX_ITERATER_NUM):
    #print(collection_uri)
    # Basic認証で記事一覧を取得
    res_collection = requests.get(collection_uri, auth=(hatena_id, password))
    if not res_collection.ok:
        print("faild")
        continue
    # Beatifulsoup4でDOM化
    soup_collectino_xml = bs4.BeautifulSoup(res_collection.content, features="xml")
    # entry elementのlistを取得
    entries = soup_collectino_xml.find_all("entry")
    # 下書きを無視
    pub_entry_list = list(filter(lambda e: e.find("app:draft").string != "yes", entries))
    for e in pub_entry_list:
        # 公開日が今年のものだけ取得
        published=dateutil.parser.parse(e.published.text) + datetime.timedelta(hours=9)
        if published.year!=dt_now.year:
            continue
        entry_count+=1
        # entry idを取得
        entry_id_list.extend([re.search(r"-(\d+)$", string=e.id.string).group(1)])
        title=e.title.string
        for t in e.find_all('category'):
            category_name=t.get('term')
            categories={category_name} - {None}
            if category_name not in category:
                category[category_name]=0
            category[category_name]+=1
        print("%s,%s,%s" % (title,published.strftime("%Y/%m/%d"),categories))

    # next
    link_next = soup_collectino_xml.find("link", rel="next")
    if not link_next:
        break
    collection_uri = link_next.get("href")
    if not collection_uri:
        break
    time.sleep(0.01)# 10ms

# カテゴリーごとの集計
for c in category:
    print("%s,%d" % (c, category[c]))

# 今年のエントリー数
print("entry count = %d" % entry_count)
entry_id_list