Python 使用.append将列表追加到词典时出错

我正在努力抓取reddit，我已经有了一本字典（reddit_sneaker_info），上面有“帖子标题”、“帖子id”、“创建的时间/日期”和“评论数”，每只鞋都是这样：

'Puma Clyde Hardwood': [{'Post_title': 'Puma Clyde Hardwood Natural, originally got these to ball in but these definitely looks good for casual use too.',
   'Post_id': 'ki4kfi',
   'Created_at': 1608669448.0,
   'Num_comments': 0}

因此，对于每一次跑步，我希望它能够循环浏览每一只鞋的帖子，并将每一篇帖子的所有评论添加到一个列表中（comments\u list）。我想把每个帖子的评论数量限制在30条。然后，一旦它将所有注释附加到comments\u列表中，获取comments\u列表并将其作为名为“comments”的新键添加到现有词典中。所以看起来是这样的：

'Puma Clyde Hardwood': [{'Post_title': 'Puma Clyde Hardwood Natural, originally got these to ball in but these definitely looks good for casual use too.',
   'Post_id': 'ki4kfi',
   'Created_at': 1608669448.0,
   'Num_comments': 0,
   'Comments':[(this is where the comments_list would go)]}

我尝试了一些在堆栈溢出上发现的方法，但没有成功。下面的代码是我最后一次尝试的代码，这是我遇到的常见错误：

---> 33         reddit_sneaker_info[shoe][post].append(comments_list)

TypeError: list indices must be integers or slices, not dict

我不知道还能做什么，我真的很感激任何帮助或纠正。谢谢大家!

#loop through each sneaker in the entire set
for shoe in reddit_sneaker_info:
    # for each sneaker extract the id number of the post
    for post in reddit_sneaker_info[shoe]:
        number_of_comments = post["Num_comments"]
        post_id = post["Post_id"]
        # empty list for comments to be re-added in 
        comments_list = []
        if number_of_comments != 0:
            # get the comments by post_id
            submission = reddit.submission(id=post_id)
            submission.comments.replace_more(limit=None)
            for comment in submission.comments.list():
                comment_count += 1
                # prevent the script from grabbing more than 30 comments
                if comment_count < 30:
                    comment_by_post = comment.body
                    # append each comment text to list
                    comments_list.append(comment_by_post)
                    
                elif comment_count == 30:
                    break
        elif number_of_comments == 0:
            pass
        # append the comment list to the dictionary for that post
        reddit_sneaker_info[shoe][post].append(comments_list)
        post_count += 1
        # hopefully this is enough time in between requests
        time.sleep(45)
    print("Comments grabbed for shoe number {}".format(post_count))

---

我决定用逗号创建一个新的数据框架，而不是将它添加到现有的字典中。也许有更好的办法，但我想这是一个解决办法。在数据框中，我还将添加鞋名和帖子id，它们与评论的来源相对应

comments_list = []
post_id_list = []
shoe_name_list = []

for shoe in reddit_sneaker_info:
    # for each sneaker extract the id number of the post
    for post in reddit_sneaker_info[shoe]:
        number_of_comments = post["Num_comments"]
        post_id = post["Post_id"]
        comment_count = 0
        if number_of_comments != 0:
            # get the comments by post_id
            submission = reddit.submission(id=post_id)
            submission.comments.replace_more(limit=None)
            for comment in submission.comments.list():
                comment_count += 1
                # prevent the script from grabbing more than 30 comments
                if comment_count < 30:
                    comment_by_post = comment.body
                    shoe_name_list.append(shoe)
                    post_id_list.append(post_id)
                    # append each comment text to list
                    comments_list.append(comment_by_post)
                    print('comment added')
                    
                elif comment_count == 30:
                    print('limit of 30 comments reached')
                    break
        elif number_of_comments == 0:
            pass
        post_count += 1
        print("please wait 45 seconds")
        # hopefully this is enough time in between requests
        time.sleep(45)
    print("Comments grabbed for post number {}".format(post_count))

comments\u list=[]
post_id_list=[]
鞋子名称列表=[]
对于reddit_运动鞋中的鞋子信息：
#对于每一双运动鞋，提取帖子的id号
在reddit_sneaker_信息[鞋]中发布：
评论数量=帖子[“评论数量”]
post\u id=post[“post\u id”]
注释计数=0
如果评论的数量！=0:
#通过post_id获取评论
提交=reddit.submission（id=post_id）
提交。评论。替换更多（限制=无）
在submission.comments.list（）中查找注释：
注释计数+=1
#防止脚本获取超过30条注释
如果注释计数小于30：
comment\u by\u post=comment.body
鞋\名称\列表。附加（鞋）
post\u id\u list.append（post\u id）
#将每个注释文本追加到列表中
评论列表。附加（评论由帖子发布）
打印（'添加注释'）
elif注释计数==30：
打印（'已达到30条评论的限制'）
打破
elif注释的数量=0：
通过
post_计数+=1
打印（“请等待45秒”）
#希望在请求之间有足够的时间
时间。睡眠（45）
打印（“为帖子编号{}捕获的评论”。格式（帖子计数））

；这与附加无关。你应该分享一点redddit\u sneaker\u信息。它很可能有一个目录。@BuddyBob我用更多的reddit_sneaker_信息编辑了原始帖子。你说得对，这是一个字典列表。那么这是否意味着我必须再往前走一层，或者我该怎么做呢？

comments_list = []
post_id_list = []
shoe_name_list = []

for shoe in reddit_sneaker_info:
    # for each sneaker extract the id number of the post
    for post in reddit_sneaker_info[shoe]:
        number_of_comments = post["Num_comments"]
        post_id = post["Post_id"]
        comment_count = 0
        if number_of_comments != 0:
            # get the comments by post_id
            submission = reddit.submission(id=post_id)
            submission.comments.replace_more(limit=None)
            for comment in submission.comments.list():
                comment_count += 1
                # prevent the script from grabbing more than 30 comments
                if comment_count < 30:
                    comment_by_post = comment.body
                    shoe_name_list.append(shoe)
                    post_id_list.append(post_id)
                    # append each comment text to list
                    comments_list.append(comment_by_post)
                    print('comment added')
                    
                elif comment_count == 30:
                    print('limit of 30 comments reached')
                    break
        elif number_of_comments == 0:
            pass
        post_count += 1
        print("please wait 45 seconds")
        # hopefully this is enough time in between requests
        time.sleep(45)
    print("Comments grabbed for post number {}".format(post_count))