Now use `subprocess.Popen` instead of the deprecated os.popen3 to issue...

import os, re, sys

from subprocess import Popen, PIPE

from django.conf import settings

from django.core.management import call_command

from django.db.backends.creation import TEST_DATABASE_PREFIX

def getstatusoutput(cmd):

    "A simpler version of getstatusoutput that works on win32 platforms."

    stdin, stdout, stderr = os.popen3(cmd)

    output = stdout.read()

    if output.endswith('\n'): output = output[:-1]

    status = stdin.close()

    return status, output

    """

    Executes a shell command on the platform using subprocess.Popen and

    return a tuple of the status and stdout output.

    """

    # Set stdout and stderr to PIPE because we want to capture stdout and

    # prevent stderr from displaying.

    p = Popen(cmd, shell=True, stdout=PIPE, stderr=PIPE)

    # We use p.communicate() instead of p.wait() to avoid deadlocks if the

    # output buffers exceed POSIX buffer size.

    stdout, stderr = p.communicate()

    return p.returncode, stdout.strip()

def create_lang(db_name, verbosity=1):

    "Sets up the pl/pgsql language on the given database."