defining input files for SeqIO


very silly question from an absolute newbie, but I am trying to run a python script I found online and am running into some issues with defining the genbank file that is required as the input for the script.

This is the beginning of the script:

#!/usr/bin/env python
import sys
import Bio
from Bio import SeqIO, SeqFeature
from Bio.SeqRecord import SeqRecord
import os

def get_interregions(genbank_path, intergene_length=1):
    seq_record = SeqIO.parse(open(genbank_path), "genbank").next()

I have tried replacing the both instances of genbank_path with the name of the gb file (both with and without quotation marks) or the path to the current folder, but I am either getting a syntax error or a message saying

 "AttributeError: 'GenBankIterator' object has no attribute 'next'

Any suggestion would be much appreciated.




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