How To Show More Blast Results Using Biopython?

Hi,

I'm using biopython to BLAST over the internet. However, it only saves 30 results (there are more than 30 results that are under the e-value I chose) in the xml. I've been looking all over but can't find how to make that number higher. So my question is, how can you show more results from BLAST using biopython. I'm using NCBIWWW.qblast from BIO.BLAST.

from Bio.Blast import  NCBIWWW
File = "MIF"
fasta_string = open(File+".fasta").read()
result_handle = NCBIWWW.qblast("blastp", "nr", fasta_string)

Thanks, Niek