I want to list more than 2000 data from salesforce in python

Both Python and salesforce are beginners.
Thank you for your cooperation.

I want to list the data retrieved by throwing a query from python to salesforce.
Eventually, I want to do csv output from the list

• Query Successful
• If you put the retrieved data (for example, 3000) in the list, you can't store up to 2000 data, and you can't store 1000 data left
• I think I'm stuck in the upper limit, but I don't know how to do it

• Python 3.8.1
• Using simple salesforce

I'll give you the code for groping.

q=a.sf.query("SELECT AccountCode__C, ID FROM Account Limit 3000")  
    cnt=q ['totalSize']    
    with open(csv_dir, 'w', encoding='utf_8') asf:
        writer=csv.writer(f, delimiter='\t', lineterminator='\n')
        val = [[x['AccountCode__c', x['Id']]] for x in q['records']]]    
        for i in range (cnt):
            line=[val[i][0], val[i][1]]
            writer.writerow (line)