Parsing Blast Output Biopython Error

Hi, I have the following code

 def runBLAST(self):
        print "Running BLAST .........."
        cmd=subprocess.Popen("blastp -db nr -query repeat.txt -out out.faa -evalue 0.001 -gapopen 11 -gapextend 1 -matrix BLOSUM62 -remote -outfmt 5",shell=True)
        cmd.communicate()[0]
        f1=open("out.faa")
        blast_records = NCBIXML.parse(f1)
        save_file = open("my_fasta_seq.fasta", 'w')
        for blast_record in blast_records[:10]:
            for alignment in blast_record.alignments:
                for hsp in alignment.hsps:
                    save_file.write('>%s\n' % (alignment.hseq,))
        save_file.close()
        f1.close()
        f2=open("my_fasta_seq.fasta")
        for record in SeqIO.parse(f2,"fasta"):
            f=open("tempBLAST1.txt","w")
            f.write(">"+"\n"+str(record.name)+"\n"+str(record.seq)+"\n")
            f.close()

I get the error on TypeError: for blastrecord in blastrecords[:10]: saying 'generator' object is not subscriptable. I am looking to get top 10 blast hits (sequences)