python - 根据两个日期时间之间的事件缩减列表

Question

我有一个对象列表，其中包括日期，并且我需要创建该日期落在上个月任何时间(即上个月 1 号午夜)的所有对象的列表<目标数据<本月 1 日午夜。

我还需要满足此条件的对象总数。

现在，我正在一系列 while 循环中进行处理，但我觉得必须有更好的方法，特别是因为我的脚本挂起:

        post = 0 #the current post we're analyzing
        posts = 0 #the total number of posts in the month we actually care about
        lastmonthposts = [] #I think i can just get rid of this
        blog = pyblog.WordPress()

        date = blog.get_recent_posts(1 + posts)[0]['dateCreated']
        while (date > startthismonth):
            print "So far, there have been " + str(posts) + " posts this month we've counted."
            post = post + 1
            date = blog.get_recent_posts(1 + post)[0]['dateCreated']
        while (date > startlastmonth):
            print "So far, there have been " + str(posts) + " posts last month we've counted, which is " + str(date.timetuple().tm_mon) + "."
            posts = posts + 1
            post = post + 1
            date = blog.get_recent_posts(1 + post)[0]['dateCreated']
            lastmonthposts.append('blog')
        for blogpost in lastmonthposts:
            postnumber = blogpost['postid']
            comments = comments + int(blog.get_comment_count(postnumber)['approved'])

Answer 1

我会使用 get_page_list() 而不是 get_recent_posts():

from datetime import datetime, timedelta

this_month_start = datetime.now().date().replace(day=1)
prev_month_start = (this_month_start - timedelta(days=1)).replace(day=1)

pages = blog.get_page_list()
last_month_pages = [
  p for p in pages
  if prev_month_start <= p['dateCreated'] < this_month_start]
last_month_approved_comment_count = sum(
  blog.get_comment_count(page['page_id'])['approved']
  for page in last_month_pages)

print "number of last month's pages:", len(last_month_pages)
print "number of approved comments for last month's pages:",
print last_month_approved_comment_count