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Im making a reddit bot that replies something to a specific comment.

But Im getting this error : invalid_grant error processing request

and I can't find the solution.

here is my code, Im using Python.

import praw
import time
import config

def login():
 r = praw.Reddit(user_agent = "test bot",
 username = config.username,
 password = config.password,
 client_id = config.client_id,
 client_secret = config.client_secret)
 print("logged in")
 return r


cache = []

def run_bot(r):
 subreddit = r.subreddit("Test")
 comments = subreddit.get_comments(limit=25)
 for comment in comments:
 comment_text = comment.body.lower()
 if "xD" in comment_text and comment.id not in cache:
 comment.reply("xD")
 cache.append(comment.id)

while True:
 r = login()
 run_bot(r)
 time.sleep(5)

traceback:

 logged in
Traceback (most recent call last):
 File "xdbot.py", line 28, in <module>
 run_bot(r)
 File "xdbot.py", line 19, in run_bot
 comments = subreddit.get_comments(limit=25)
 File "D:ProgrammingPhytonlibsite-packagesprawmodelsredditbase.py", line 31, in __getattr__
 self._fetch()
 File "D:ProgrammingPhytonlibsite-packagesprawmodelsredditbase.py", line 66, in _fetch
 params=self._info_params)
 File "D:ProgrammingPhytonlibsite-packagesprawreddit.py", line 367, in get
 data = self.request('GET', path, params=params)
 File "D:ProgrammingPhytonlibsite-packagesprawreddit.py", line 451, in request
 params=params)
 File "D:ProgrammingPhytonlibsite-packagesprawcoresessions.py", line 174, in request
 params=params, url=url)
 File "D:ProgrammingPhytonlibsite-packagesprawcoresessions.py", line 108, in _request_with_retries
 data, files, json, method, params, retries, url)
 File "D:ProgrammingPhytonlibsite-packagesprawcoresessions.py", line 93, in _make_request
 params=params)
 File "D:ProgrammingPhytonlibsite-packagesprawcorerate_limit.py", line 32, in call
 kwargs['headers'] = set_header_callback()
 File "D:ProgrammingPhytonlibsite-packagesprawcoresessions.py", line 134, in _set_header_callback
 self._authorizer.refresh()
 File "D:ProgrammingPhytonlibsite-packagesprawcoreauth.py", line 328, in refresh
 password=self._password)
 File "D:ProgrammingPhytonlibsite-packagesprawcoreauth.py", line 142, in _request_token
 payload.get('error_description'))
prawcore.exceptions.OAuthException: invalid_grant error processing request

Double check your credentials as this note says.

Remember that the username is your reddit's account name, not the bot's name.