python - 正确配置 gae_mini_profiler 时出现问题

Question

我在获取 https://github.com/Khan/gae_mini_profiler 时遇到问题在我的应用程序中正常工作。

我仔细遵循了说明，这是我的应用程序(删除了不必要的内容。)

import webapp2
from webapp2_extras import jinja2
import appengine_config
import handlers
import gae_mini_profiler.profiler

class MainHandler(handlers.BaseRequestHandler):
    def get(self):
        user = separate_file.get_user_and_logins(self)
        templateid = 'home.html'
        context = {
            'user': user,
        }
        self.render(templateid, context)

app_config = {
    'webapp2_extras.jinja2.default_config': {
        'globals': {
            'profiler_includes': gae_mini_profiler.templatetags.profiler_includes,
         },
     },
}

app = webapp2.WSGIApplication([
  ('/', MainHandler)], config=app_config, debug=True)
app = gae_mini_profiler.profiler.ProfilerWSGIMiddleware(app)

我收到此错误:

ERROR    2015-05-21 20:23:25,460 wsgi.py:263] 
Traceback (most recent call last):
  File "/Users/jedc/google-cloud-sdk/platform/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/runtime/wsgi.py", line 240, in Handle
handler = _config_handle.add_wsgi_middleware(self._LoadHandler())
  File "/Users/jedc/google-cloud-sdk/platform/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/runtime/wsgi.py", line 299, in _LoadHandler
handler, path, err = LoadObject(self._handler)
  File "/Users/jedc/google-cloud-sdk/platform/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/runtime/wsgi.py", line 85, in LoadObject
obj = __import__(path[0])
  File "/Users/jedc/mypathtomyapp/main.py", line 33, in <module>
'profiler_includes': gae_mini_profiler.templatetags.profiler_includes,
AttributeError: 'module' object has no attribute 'templatetags'

这可能是因为我在主应用程序中使用 webapp2 而不是 webapp 吗？或者我应该以不同的方式导入 gae_mini_profiler ？我想不通。

更新

专门导入 gae_mini_profiler.templatetags 后，我现在遇到了一个新错误。

  File "/Users/jedc/Dropbox (Personal)/code/seeddb-devbranch/seeddbapp/main.py", line 22, in get
self.render(templateid, context)
  File "/Users/jedc/Dropbox (Personal)/code/seeddb-devbranch/seeddbapp/handlers.py", line 64, in render
self.response.write(self.jinja2.render_template(template_name, **values))
  File "/Users/jedc/google-cloud-sdk/platform/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webapp2-2.5.1/webapp2_extras/jinja2.py", line 158, in render_template
return self.environment.get_template(_filename).render(**context)
  File "/Users/jedc/google-cloud-sdk/platform/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/jinja2-2.6/jinja2/environment.py", line 894, in render
return self.environment.handle_exception(exc_info, True)
  File "templates/base.html", line 118, in template
    {% profiler_includes %}
TemplateSyntaxError: Encountered unknown tag 'profiler_includes'.

base.html 的末尾有:

  </div>
  {% profiler_includes %}
  </body>
</html>

现在如果我改变:

{% profiler_includes %}

至:

{{ profiler_includes }}

它清除了错误，但实际上似乎并未触发该功能。

我不是 Jinja2 专家，但是当我在 webapp2_extras.jinja2.default_config 部分定义函数时，我是否指定了错误的内容？

Answer 1

您缺少导入语句。您还应该明确导入 gae_mini_profiler.templatetags，因为您正在使用它。

import gae_mini_profiler.templatetags