Django1.2/google-appengine 调试“KeyError：'REQUEST_METHOD”错误

Question

我有一个使用 Django 1.2 和 google-appengine 的 Python 2.7 项目。要运行该文件，我输入python main.py。这样做，我收到以下错误。我对google-appengine 或 Django 都不熟悉，不知道为什么会出现此错误。该项目还有一个名为lib 的文件夹，其中有一个名为appengine 的文件夹。我试图设置这个文件夹的路径，但它似乎什么也没做。

Traceback (most recent call last):
  File "/home/vicktree/.local/share/virtualenvs/noahs-app-M81YxnJh/local/lib/python2.7/site-packages/webapp2.py", line 1535, in __call__
    rv = self.handle_exception(request, response, e)
  File "/home/vicktree/.local/share/virtualenvs/noahs-app-M81YxnJh/local/lib/python2.7/site-packages/webapp2.py", line 1595, in handle_exception
    return handler(request, response, e)
  File "/home/vicktree/Desktop/noah/web/noahs-app/handlers/hoptoad_handler.py", line 82, in handle_500_error
    notify_hoptoad(exception, request, False, False)
  File "/home/vicktree/Desktop/noah/web/noahs-app/handlers/hoptoad_handler.py", line 76, in notify_hoptoad
    send_to_hoptoad(generate_xml(exn, request, debug_mode), use_ssl)
  File "/home/vicktree/Desktop/noah/web/noahs-app/handlers/hoptoad_handler.py", line 34, in generate_xml
    xml << ('url', request.url)
  File "/home/vicktree/.local/share/virtualenvs/noahs-app-M81YxnJh/local/lib/python2.7/site-packages/webob/request.py", line 495, in url
    url = self.path_url
  File "/home/vicktree/.local/share/virtualenvs/noahs-app-M81YxnJh/local/lib/python2.7/site-packages/webob/request.py", line 467, in path_url
    bpath_info = bytes_(self.path_info, self.url_encoding)
  File "/home/vicktree/.local/share/virtualenvs/noahs-app-M81YxnJh/local/lib/python2.7/site-packages/webob/descriptors.py", line 70, in fget
    return req.encget(key, encattr=encattr)
  File "/home/vicktree/.local/share/virtualenvs/noahs-app-M81YxnJh/local/lib/python2.7/site-packages/webob/request.py", line 153, in encget
    raise KeyError(key)
KeyError: 'PATH_INFO'
ERROR:root:'REQUEST_METHOD'
Traceback (most recent call last):
  File "/home/vicktree/.local/share/virtualenvs/noahs-app-M81YxnJh/local/lib/python2.7/site-packages/webapp2.py", line 1546, in __call__
    return response(environ, start_response)
  File "/home/vicktree/.local/share/virtualenvs/noahs-app-M81YxnJh/local/lib/python2.7/site-packages/webob/exc.py", line 358, in __call__
    is_head = environ['REQUEST_METHOD'] == 'HEAD'
KeyError: 'REQUEST_METHOD'
Traceback (most recent call last):
  File "main.py", line 1426, in <module>
    main()
  File "main.py", line 1423, in main
    run_wsgi_app(application)
  File "/usr/lib/google-cloud-sdk/platform/google_appengine/google/appengine/ext/webapp/util.py", line 101, in run_wsgi_app
    run_bare_wsgi_app(add_wsgi_middleware(application))
  File "/usr/lib/google-cloud-sdk/platform/google_appengine/google/appengine/ext/webapp/util.py", line 119, in run_bare_wsgi_app
    result = application(env, _start_response)
  File "/home/vicktree/.local/share/virtualenvs/noahs-app-M81YxnJh/local/lib/python2.7/site-packages/webapp2.py", line 1548, in __call__
    return self._internal_error(e)(environ, start_response)
  File "/home/vicktree/.local/share/virtualenvs/noahs-app-M81YxnJh/local/lib/python2.7/site-packages/webob/exc.py", line 358, in __call__
    is_head = environ['REQUEST_METHOD'] == 'HEAD'
KeyError: 'REQUEST_METHOD'

我的问题：

1. 我是否使用了不正确的google-appengine 版本（版本=272.0.0）？

2. 导致错误的具体原因是什么。我不明白REQUEST_METHOD 是什么意思

感谢您的宝贵时间。

Answer 1

在本地运行您的 Google App Engine 标准（第一代）应用时，您应该改用 dev_appserver.py 本地开发服务器。

更多详情请见https://cloud.google.com/appengine/docs/standard/python/tools/using-local-server。