系统警报（13，'权限被拒绝'），如何解决？

Question

def upload_file(request, step_id): 
    def handle_uploaded_file (file): 
     current_step = Step.objects.get(pk=step_id) 
     current_project = Project.objects.get(pk=current_step.project.pk) 

     path = "%s/upload/file/%s/%s" % (settings.MEDIA_ROOT, current_project.project_no, current_step.name) 
     if not os.path.exists (path): 
      os.makedirs(path) 
     fd = open(path) 
     for chunk in file.chunks(): 
      fd.write(chunk) 
     fd.close() 

    if request.method == 'POST': 
     form = UploadFileForm(request.POST, request.FILES) 
     if form.is_valid(): 
      handle_uploaded_file(request.FILES['file']) 
      return HttpResponseRedirect('/success/url/') 
    else: 
     form = UploadFileForm() 
    return render_to_response('projects/upload_file.html', { 
                 'step_id': step_id, 
                 'form': form, 
                 }) 

Answer 1

确保path具有必要的权限。运行python/django进程的用户需要具有write权限。 chmod到0777的路径 - 这不是一个好的生产模式，但它会很快验证文件系统权限是否是问题的根源。