又是字符问题

def upfile(request):
    global BUCKET,bcs
    if request.method == 'GET':
        return render_to_response('upload.html')
    elif request.method == 'POST':
        file = request.FILES['cs']
        f    = handfile(file)
        b = bcs.bucket(BUCKET)
        name = '/%s' % file.name
        o = b.object(name)
        o.put_file(f)
        os.remove(f)
        return HttpResponseRedirect('/p/')
def handfile(f):
    fpath = '/tmp/%s' % f.name
    with open(fpath,'wb+') as info:
        for chunk in f.chunks():
            info.write(chunk)
    return fpath