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import time
import praw
import prawcore
import pandas as pd
import os
from datetime import datetime
FILENAME_POSTS = 'output_posts_after2022.csv'
def create_reddit_instance():
reddit = praw.Reddit(
client_id=os.getenv('REDDIT_CLIENT_ID'),
client_secret=os.getenv('REDDIT_CLIENT_SECRET'),
user_agent=os.getenv('REDDIT_USER_AGENT')
)
return reddit
def get_subreddit(reddit, subreddit_name):
subreddit = reddit.subreddit(subreddit_name)
return subreddit
def load_existing_data(file_name):
if os.path.exists(file_name):
df = pd.read_csv(file_name)
existing_ids = df['id'].tolist()
else:
df = pd.DataFrame()
existing_ids = []
return df, existing_ids
def get_top_comments(submission):
top_comments = []
submission.comments.sort_by = 'top'
for comment in submission.comments[:5]:
top_comments.append(comment.body)
return top_comments
def get_new_post_row(submission, top_comments):
date = datetime.fromtimestamp(submission.created)
new_row = {
"id": submission.id,
"url": submission.url,
"score": submission.score,
"title": submission.title,
"body": submission.selftext,
"top_comment1": top_comments[0] if len(top_comments) > 0 else None,
"top_comment2": top_comments[1] if len(top_comments) > 1 else None,
"top_comment3": top_comments[2] if len(top_comments) > 2 else None,
"top_comment4": top_comments[3] if len(top_comments) > 3 else None,
"top_comment5": top_comments[4] if len(top_comments) > 4 else None,
"date": date
}
return new_row
def save_data(df, file_name):
df.to_csv(file_name, index=False)
def main():
reddit = create_reddit_instance()
subreddit = get_subreddit(reddit, 'tunisia')
df_posts, existing_post_ids = load_existing_data(FILENAME_POSTS)
print('Starting to scrape posts')
# Fetch 1000 newest posts
new_posts = list(subreddit.new(limit=1000))
for submission in new_posts:
if submission.id in existing_post_ids:
print(f'Skipped post {submission.id}')
continue
try:
top_comments = get_top_comments(submission)
new_row = get_new_post_row(submission, top_comments)
df_posts = df_posts._append(new_row, ignore_index=True)
except prawcore.exceptions.TooManyRequests:
print("Hit rate limit, sleeping .....")
time.sleep(60)
save_data(df_posts, FILENAME_POSTS)
print('Finished scraping')
print("Data saved to ", FILENAME_POSTS)
if __name__ == "__main__":
main()
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