Indendation issue in Python code

Question

I am a beginner with python and have been trying to learn to create twitter bots to reply to tweets from the streaming API. The following is my code. I am getting the following error when I run it:

check (): Indentation error: unindent does not match with any outer indentation level. I cannot find any indentation error

import tweepy
from tweepy import Stream
from tweepy.streaming import StreamListener
from tweepy import OAuthHandler
import json
import time

consumer_key = 
consumer_secret = 
access_token = 
access_secret = 

def check():
    datafile = file('C:\Users\User\Desktop\Handles', 'r')
    found = False
    for line in datafile:
        if status.user.screen_name in line:
            found = True
            break
    return found


class MyListener(StreamListener):


    def on_status(self, status):
        f=status.user.screen_name
        if check() :
            return True
        else:
            Append=open('Growth Handles.txt' , 'a' )
            Append.write(f)
            Append.close()
            Reply='@handlename' + 'Check out Tomorrowland 2014 Setlist . http://.... '
            api = tweepy.API(auth)
            api.update_status(Reply)
            time.sleep(45)
        return True

    def on_error(self, status):
        print(status)
        return True

auth = OAuthHandler(consumer_key, consumer_secret)
auth.set_access_token(access_token, access_secret)

twitter_stream = Stream(auth, MyListener())
twitter_stream.filter(track=['#musiclovers'])

Answer 1

This is how your code looks like when using notepad++:

As you can see some of your lines are indented with 4 spaces and some with tabs.
You should really use IDE when you write code, or at least use notepad++ (which is not an IDE but is good enough to understand errors like this).

I can really advise using pycharm. They have free edition and it works great.