无法在破折号应用程序中加载静态CSS文件

Question

我已经构建了一个单页破折号应用程序，该应用程序在作为单个文件运行时可以按预期运行，但是当我尝试将其作为一个整体应用程序运行时，CSS无法正确加载。

下面是我的文件夹结构

虽然我通过下面的manage.py加载了整个应用程序，却是我得到的错误

Internal Server Error: /assets/internal.css
Traceback (most recent call last):
  File "C:\Users\Tushar\Documents\serato_video_analyser\video_analyser\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
    response = get_response(request)
  File "C:\Users\Tushar\Documents\serato_video_analyser\video_analyser\lib\site-packages\django\core\handlers\base.py", line 126, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "C:\Users\Tushar\Documents\serato_video_analyser\video_analyser\lib\site-packages\django\core\handlers\base.py", line 124, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\Tushar\Documents\serato_video_analyser\video_analyser\my_project\analyser_tool\views.py", line 32, in dash_index
    return HttpResponse(dispatcher(request))
  File "C:\Users\Tushar\Documents\serato_video_analyser\video_analyser\my_project\analyser_tool\views.py", line 27, in dispatcher
    return response.get_data()
  File "C:\Users\Tushar\Documents\serato_video_analyser\video_analyser\lib\site-packages\werkzeug\wrappers.py", line 986, in get_data
    self._ensure_sequence()
  File "C:\Users\Tushar\Documents\serato_video_analyser\video_analyser\lib\site-packages\werkzeug\wrappers.py", line 1035, in _ensure_sequence
    raise RuntimeError('Attempted implicit sequence conversion '
RuntimeError: Attempted implicit sequence conversion but the response object is in direct passthrough mode.

这是我正在使用的唯一第二个破折号应用程序，不幸的是它没有太多经验。我真的很希望有人能帮助我解决此问题。我已经为此苦苦挣扎了几天。

非常感谢！

Answer 1

通过不断的研究，我能够通过将以下内容添加到我的服务器中来解决该问题。

css_directory = os.getcwd()
stylesheets = ['stylesheet.css']
static_css_route = '/static/'


@app.server.route('{}<stylesheet>'.format(static_css_route))
def serve_stylesheet(stylesheet):
    if stylesheet not in stylesheets:
        raise Exception(
            '"{}" is excluded from the allowed static files'.format(
                stylesheet
            )
        )
    return flask.send_from_directory(css_directory, stylesheet)


for stylesheet in stylesheets:
    app.css.append_css({"external_url": "/static/{}".format(stylesheet)})

此答案之前已回答，取自

https://community.plot.ly/t/serve-locally-option-with-additional-scripts-and-style-sheets/6974/6