Blast Results Wont Return

This isnt my usual way if doing things but because im using Plone it has to be done this way. The function below takes a variable "x" which is the query sequence. Its is then formatted to a blast-able format and then blasted against the database. When results are retuned the file is empty. Any idea why? I had this working but now its not...

def print_query(x):
    f = open('/home/rv/ncbi-blast-2.2.23+/db/test.txt', 'w')
    f.write(x)
    from subprocess import Popen
    Popen(["formatdb", "-p", "T", "-i", "/home/rv/ncbi-blast-2.2.23+/db/test.txt"])
    Popen(["blastall", "-d", "/home/rv/ncbi-blast-2.2.23+/db/vdatabase.fasta", "-i", "/home/rv/ncbi-blast-2.2.23+/db/test.txt", "-p", "blastp", "-m", "8", "-e", "0.01", "-o", "/home/rv/ncbi-blast-2.2.23+/db/output.blast"])
    return open('/home/rv/ncbi-blast-2.2.23+/db/output.blast', 'r').read()

P.S. I know im using the outdated BLAST I'm planning on switching when i have this working