Memcache 状态不适用于 Django 1.11 和 Python 3.6

Question

我为我的 django 项目（Django 1.11 和 Python 3.6）安装了 memcached。 当我在 settings.py 中将 memcached_status 添加到我已安装的应用程序时，当我尝试打开 Django 管理页面时出现此错误：

Internal Server Error: /admin/
Traceback (most recent call last):
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/core/handlers/exception.py", line 41, in inner
response = get_response(request)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/core/handlers/base.py", line 217, in _get_response
response = self.process_exception_by_middleware(e, request)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/core/handlers/base.py", line 215, in _get_response
response = response.render()
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/response.py", line 107, in render
self.content = self.rendered_content
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/response.py", line 84, in rendered_content
content = template.render(context, self._request)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/backends/django.py", line 66, in render
return self.template.render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 207, in render
return self._render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 199, in _render
return self.nodelist.render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 990, in render
bit = node.render_annotated(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 957, in render_annotated
return self.render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/loader_tags.py", line 177, in render
return compiled_parent._render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 199, in _render
return self.nodelist.render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 990, in render
bit = node.render_annotated(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 957, in render_annotated
return self.render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/loader_tags.py", line 177, in render
return compiled_parent._render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 199, in _render
return self.nodelist.render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 990, in render
bit = node.render_annotated(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 957, in render_annotated
return self.render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/loader_tags.py", line 177, in render
return compiled_parent._render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 199, in _render
return self.nodelist.render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 990, in render
bit = node.render_annotated(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 957, in render_annotated
return self.render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/loader_tags.py", line 72, in render
result = block.nodelist.render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 990, in render
bit = node.render_annotated(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 957, in render_annotated
return self.render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/defaulttags.py", line 322, in render
return nodelist.render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 990, in render
bit = node.render_annotated(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 957, in render_annotated
return self.render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/defaulttags.py", line 216, in render
nodelist.append(node.render_annotated(context))
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 957, in render_annotated
return self.render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/defaulttags.py", line 216, in render
nodelist.append(node.render_annotated(context))
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 957, in render_annotated
return self.render(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 1040, in render
output = self.filter_expression.resolve(context)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/django/template/base.py", line 736, in resolve
new_obj = func(obj, *arg_vals)
File "/Users/comp/Desktop/Dev/educa/lib/python3.6/site-
packages/memcache_status/templatetags/memcache_status_tags.py", line 
106, in prettyname
return ' '.join([word.capitalize() for word in name.split('_')])
TypeError: a bytes-like object is required, not 'str'

在他们的 github 存储库中，他们说我只需要将 memchache_status 添加到我在 settings.py 中安装的应用程序中，它就可以工作。 有没有人有同样的问题？如果是，我应该如何正确安装我的 Django 管理页面的 memchached 状态。

Answer 1

更新

我怀疑您还安装了python3-memcached（现在已弃用，请参阅自述文件），在这种情况下可能会覆盖您的python-memcached 安装（现在支持 Python 2 和 3）。如果是这样，您需要同时删除python3-memcached 和python-memcached，然后重新安装后者，版本 >= 1.58。

---

您需要将python-memcache 升级到最新版本，目前为 1.58。

此包与您的 memcached 服务器交互以提取它收集的统计信息。该软件包的早期版本没有将传入的统计数据（特别是键）解码为 Python 3 str 类型（即 unicode），只是将 bytes 字符串传递给 memcached_status prettyname 过滤器 - 这假定一个 str 对象。