类型错误：类型Redditor“的对象不是JSON序列化

Question

我工作在Reddit上爬行，并得到了以下错误。我是新来的这个问题，并寻求建议，以克服错误

import praw
import json

reddit = praw.Reddit(client_id= client_id, \
                     client_secret= client_secret, \
                     user_agent= user1, \
                     username= username, \
                     password= password)

def prawSubreddit(subName, lm):
    print("Collecting from /r/{}...".format(subName))
    subreddit = reddit.subreddit(subName)
    submissions = subreddit.top(limit=lm)
    redditData = []

    for submission in submissions:
        keys = ['Title', 'Txt', 'Author']
        func = [submission.title, submission.selftext, submission.author]
        redditData.append(dict(zip(keys,func)))

    print("Finished Collecting.")
    writeOutput("{}.txt".format(subName),redditData)
def writeOutput(fileName, data):
   `outputFile = open(fileName, "w")
    outputFile.write(json.dumps(data, sort_keys = True))

if __name__ == '__main__':
  prawSubreddit('opiates', 5)

Answer 1

在这种特定的情况下，可以通过铸造submission.author与str(submission.author)字符串解决问题。该json库不能序列化Redditor对象（这是submission.author是什么），但它可以序列化的字符串。

所以，用func = [submission.title, submission.selftext, submission.author]更换func = [submission.title, submission.selftext, str(submission.author)]。