CODEWITHSUNDEEP
pythonlist
MKK
MKK

Reputation: 49

How can i not get the list index out of range error from this code?

Im downloading the followers from 2 twitter accounts and putting them into a list of dictionaries. I downloaded 10 followers from account1 and 10 followers from account2. And with the following code i take the first 4 followers of account 1 and the first 4 of account2 and display them 

twitter_accounts = ["account1", "account2"]
res = {}
follower = []
pbar = tqdm_notebook(total=len(twitter_accounts))

for twitter_account in twitter_accounts:
    inner_structure = []
    for page in tweepy.Cursor(api.followers, screen_name=twitter_account,
                              skip_status=True, include_user_entities=False).items(10):
        val = page._json
        inner_dict = {}
        inner_dict["name"] = val["name"] 
        inner_dict["screen_name"] = val["screen_name"]
        if inner_dict not in inner_structure:
            inner_structure.append(inner_dict)

    res[twitter_account] = inner_structure
    pbar.update(1)

pbar.close()

for twitter_account in twitter_accounts:  
        for i in range(4):
            display(res[twitter_account][i]['screen_name'])

So the final result will be the displaying of the first 4 followers of acc1 and the first 4 of acc2.

But what i really need to do is take those 8 strings and instead of displaying them storing them into an array.

I tried this way but i get an index out of range error.

for twitter_account in twitter_accounts:
        for i in range(4):
            for j in range(8):
            follower[j]= res[twitter_account][i]['screen_name']

How can i store them in an array without getting the error?

Upvotes: 0

Views: 46

Answers (1)

Guimoute
Guimoute

Reputation: 4649

You can either declare the list first, and append elements to it:

followers = []
for twitter_account in twitter_accounts:
        for i in range(4):
            followers.append(res[twitter_account][i]['screen_name'])

Or use a list comprehension directly (which I believe works but I can't test right now):

followers = [res[twitter_account][i]['screen_name'] for i in range(4) for twitter_account in twitter_accounts]

Whichever you find clearer and more readable (-:

Upvotes: 1

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