Werkzeug 服务器在 Django 应用程序中关闭

Question

将 Werkzeug 版本从 2.0.3 更新到 2.1.0 后，每次运行服务器时都会出现错误，错误日志如下：

Exception happened during processing of request from ('127.0.0.1', 44612)                                                                                                                                  
Traceback (most recent call last):                                                                                                                                                                         
  File "/usr/lib/python3.8/socketserver.py", line 683, in process_request_thread                                                                                                                           
    self.finish_request(request, client_address)                                                                                                                                                           
  File "/usr/lib/python3.8/socketserver.py", line 360, in finish_request                                                                                                                                   
    self.RequestHandlerClass(request, client_address, self)                                                                                                                                                
  File "/usr/lib/python3.8/socketserver.py", line 747, in __init__                                                                                                                                         
    self.handle()                                                                                                                                                                                          
  File "/home/oladhari/.virtualenvs/reachat/lib/python3.8/site-packages/werkzeug/serving.py", line 363, in handle                                                                                          
    super().handle()                                                                                                                                                                                       
  File "/usr/lib/python3.8/http/server.py", line 427, in handle                                                                                                                                            
    self.handle_one_request()                                                                                                                                                                              
  File "/usr/lib/python3.8/http/server.py", line 415, in handle_one_request                                                                                                                                
    method()                                                                                                                                                                                               
  File "/home/oladhari/.virtualenvs/reachat/lib/python3.8/site-packages/werkzeug/serving.py", line 243, in run_wsgi                                                                                        
    self.environ = environ = self.make_environ()                                                                                                                                                           
  File "/home/oladhari/.virtualenvs/reachat/lib/python3.8/site-packages/django_extensions/management/commands/runserver_plus.py", line 326, in make_environ                                                
    del environ['werkzeug.server.shutdown']                                                                                                                                                                
KeyError: 'werkzeug.server.shutdown'  

当递增 2 ( ('127.0.0.1', 44612) -> ('127.0.0.1', 44628) 时，此异常不断出现，并且服务器崩溃

检查更改日志，我发现了这个细节：

Remove previously deprecated code. #2276

Remove the non-standard shutdown function from the WSGI environ when running the development server. See the docs for alternatives.

这是更改日志的链接

它要求检查替代方案的文档，但找不到任何替代方案

请让我知道如何解决这个错误，谢谢注意：我的Python版本是3.8

Answer 1

今天刚遇到这个问题。根据他们的（git repo issues 1715）并假设你正在运行runserver_plus，有三个选项对某些用户有用。第一个对我有用：

1. 不更改您的文件并添加选项--keep-meta-shutdown。我的完整命令看起来像python manage.py runserver_plus --cert-file /path/to/cert.pem --key-file /path/to/key.pem --keep-meta-shutdown localhost:9000
2. 注释掉 runserver_plus.py 下打开的第 325 行和 326 行
3. 将Python升级到3.10

希望这可以帮助！