Question

我已将Reddit数据提取到Python，并打算将其写入csv / txt文件。问题是我只能将100行中的一行写入文件。其余的由于某种原因不会被写入文件。

我对Python非常业余，如果有人可以帮助我解决我做错的事情，我将不胜感激。非常感谢！

代码：

import praw

myreddit = praw.Reddit(client_id='xxxxx', client_secret='xxxxxx',
                       user_agent='Testing app')

newposts = myreddit.subreddit('Bitcoin').new(limit=100) #connection to 100 newest subreddits
for post in newposts:
    data = ('ID: {}, Date_utc: {}, Upvotes: {}, Number of comments: {}, Subthread name: {}'.format(post,
                                                                                                 post.created_utc,
                                                                                                 post.ups,
                                                                                                 post.num_comments,
                                                                                                 post.title)) #fetch following data: post ID, time, up votes, amt of comments, the titel of the subreddit
    with open('C:\\testRedditFetch.csv','w') as f: #open the file
         f.write(data) #write the file

Answer 1

您每次都要写入一个csv，这会覆盖当前数据，您可以将“ w”更改为“ a”，这是附加的，这样您的数据将被附加而不被覆盖。

import praw
import csv

myreddit = praw.Reddit(client_id='xxxxx', client_secret='xxxxxx',
                       user_agent='Testing app')

newposts = myreddit.subreddit('Bitcoin').new(limit=100) #connection to 100 newest subreddits
with open('C:\\testRedditFetch.csv','a') as f:
    headers = ['ID', 'Date_utc', 'Upvotes', 'Number of Comments', 'Subthread name']
    writer = csv.DictWriter(f, fieldnames=headers, extrasaction='ignore', dialect='excel')
    writer.writeheader()
    for post in newposts:
        data = {'ID: {}, Date_utc: {}, Upvotes: {}, Number of comments: {}, Subthread name: {}'.format(post,
                                                                                                     post.created_utc,
                                                                                                     post.ups,
                                                                                                     post.num_comments,
                                                                                                     post.title)} #fetch following data: post ID, time, up votes, amt of comments, the titel of the subreddit
        writer.writerow(data)

如何将多行Reddit数据（使用praw）写入csv / txt文件？

1 个答案: