Django snippets

import os
from datetime import date
from django.conf import settings
from django.shortcuts import render_to_response
from django.http import HttpResponse
from django.contrib.admin.views.decorators import staff_member_required

@staff_member_required
def export_database(request):
    if not request.method == 'POST':
        return render_to_response('admin/export.html', {'what': 'Database',})
    else:
        #output backup
        cmd = settings.MYSQLDUMP_BIN+' --opt --compact --skip-add-locks -u %s -p%s %s | bzip2 -c' % (settings.DATABASE_USER, settings.DATABASE_PASSWORD, settings.DATABASE_NAME)
        stdin, stdout = os.popen2(cmd)
        stdin.close()
        response = HttpResponse(stdout, mimetype="application/octet-stream")
        response['Content-Disposition'] = 'attachment; filename=%s' % date.today().__str__()+'_db.sql.bz2'
        return response


@staff_member_required        
def export_media(request):
    if not request.method == 'POST':
        return render_to_response('admin/export.html', {'what': 'Media Root',})
    else:
        #output media
        stdin, stdout = os.popen2('tar -cf - %s' % settings.MEDIA_ROOT)
        stdin.close()
        #print "created process, closed stdin"
        response = HttpResponse(stdout, mimetype="application/octet-stream")
        response['Content-Disposition'] = 'attachment; filename=%s' % date.today().__str__()+'_media.tar'
        return response