Django顶级模板代码中的UnicodeDecodeError

Question

我的视图中有代码，该代码返回要在文本框中显示的信息。 我的名字的字母上有fadas（爱尔兰口音），这会导致UnicodeDecodeErrors。 我的逻辑行如下：

return {
    ...
    'wrap_up_form': WrapUpForm(data={u'message': settings.DEFAULT_WRAP_UP_MESSAGE.format(name=customer.given_name.encode('utf-8'))}),
}

我得到的回溯是

ERROR    2014-07-24 14:48:26,540 exception_handlers.py:65] 'ascii' codec can't decode byte 0xc3 in position 5: ordinal not in range(128)
Traceback (most recent call last):
  File "/home/rony/google_appengine/lib/webapp2-2.5.2/webapp2.py", line 1529, in __call__
    rv = self.router.dispatch(request, response)
  File "/home/rony/Documents/clone-attempt/personal-shopping/vendor/nacelle/core/dispatcher.py", line 24, in nacelle_dispatcher
    response = router.default_dispatcher(request, response)
  File "/home/rony/google_appengine/lib/webapp2-2.5.2/webapp2.py", line 1278, in default_dispatcher
    return route.handler_adapter(request, response)
  File "/home/rony/google_appengine/lib/webapp2-2.5.2/webapp2.py", line 1065, in __call__
    return self.handler(request, *args, **kwargs)
  File "/home/rony/Documents/clone-attempt/personal-shopping/app/utils/decorators.py", line 43, in _arguments_wrapper
    return view_method(request, *args, **kwargs)
  File "/home/rony/Documents/clone-attempt/personal-shopping/app/utils/decorators.py", line 89, in _arguments_wrapper
    output = render_jinja2_template(template_name, context)
  File "/home/rony/Documents/clone-attempt/personal-shopping/vendor/nacelle/core/template/renderers.py", line 19, in render_jinja2_template
    return renderer.render_template(template_name, **context)
  File "/home/rony/google_appengine/lib/webapp2-2.5.2/webapp2_extras/jinja2.py", line 158, in render_template
    return self.environment.get_template(_filename).render(**context)
  File "/home/rony/google_appengine/lib/jinja2-2.6/jinja2/environment.py", line 894, in render
    return self.environment.handle_exception(exc_info, True)
  File "templates/cms/appointments_form.html", line 2, in top-level template code
    {% import 'cms/macros.html' as cms_macros %}
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 5: ordinal not in range(128)

我是否需要在模板中添加某种编码？

Answer 1

customer.given_name似乎是一个字节字符串，而不是Unicode-因此，在对其调用encode时，Python首先需要将其解码为Unicode，然后才能将其重新编码为UTF-8。

您应该完全删除编码调用。

Answer 2

正如Daniel Roseman回答的那样，我也怀疑customer.given_name是字节字符串； 尝试对其encode会导致Python尝试对其进行解码。

另一个问题是DEFAULT_WRAP_UP_MESSAGE是字节字符串文字。

str.format(unicode)有相同的问题。

---

解：

• 删除.decode(..)部分。
• 使一个DEFAULT_WRAP_UP_MESSAGE Unicode对象而不是字节字符串。