Django UnicodeEncodeError im Rendering-Formular ('utf-8')

Question

Ich habe einen UnicodeEncodeError beim Rendern von Seiten mit Formularen.

UnicodeEncodeError at /individual/acc/ 

'ascii' codec can't encode character u'\u0142' in position 2: ordinal not in range(128) 

Hier HTML-Fragment (Standard Verwendung von Formularen):

<table> 
    {{user_form.as_table}} 
    {{individual_form.as_table}} 
</table> 

Im Hinblick ich sie so zu erstellen:

user_form = UserCreationForm(request.POST) 
individual_form = IndividualForm(request.POST) 

und

context = {'gd': generalData(request), 
      'head': "images/header_individual.png", 
      'individual': user.individual, 
      'user_form': user_form, 
      'individual_form': individual_form, 
      'title': _("EDIT ACCOUNT"), } 
return render(request, 
       "main/edit_account.html", 
       context) 

auf Seite gesendet

In allen meinen .py-Dateien habe ich

# -*- coding: utf-8 -*- 

in erster Linie, und in HTML bekam ich

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 

Ich fand heraus, dass im Fall eines einfachen String

unicode(your_string) 

genug sein würde, aber ich weiß nicht wirklich wie man es in Formularen benutzt. Sollte ich sie durchlaufen und einen Filter setzen?

EDIT: Hinzufügen voller Zurückverfolgungs:

UnicodeEncodeError at /individual/acc/ 

'ascii' codec can't encode character u'\u0142' in position 2: ordinal not in range(128) 

Request Method:  GET 
Request URL: http://127.0.0.1:8080/individual/acc/ 
Django Version:  1.7.1 
Exception Type:  UnicodeEncodeError 
Exception Value:  

'ascii' codec can't encode character u'\u0142' in position 2: ordinal not in range(128) 

Exception Location:  /home/mknapczyk/Workspace/ASPHER/src/main/models.py in __str__, line 42 
Python Executable: /home/mknapczyk/Workspace/ASPHER/env/bin/python 
Python Version:  2.7.6 
Python Path:  

['/home/mknapczyk/Workspace/ASPHER/src', 
'/home/mknapczyk/Workspace/ASPHER/env/lib/python2.7', 
'/home/mknapczyk/Workspace/ASPHER/env/lib/python2.7/plat-x86_64-linux-gnu', 
'/home/mknapczyk/Workspace/ASPHER/env/lib/python2.7/lib-tk', 
'/home/mknapczyk/Workspace/ASPHER/env/lib/python2.7/lib-old', 
'/home/mknapczyk/Workspace/ASPHER/env/lib/python2.7/lib-dynload', 
'/usr/lib/python2.7', 
'/usr/lib/python2.7/plat-x86_64-linux-gnu', 
'/usr/lib/python2.7/lib-tk', 
'/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages', 
'/home/mknapczyk/Workspace/ASPHER/env/lib/python2.7/site-packages'] 

Server time: Mon, 5 Jan 2015 14:11:25 +0000 
Unicode error hint 

The string that could not be encoded/decoded was: Małopols 

Traceback:

File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response 
    111.      response = wrapped_callback(request, *callback_args, **callback_kwargs) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/contrib/auth/decorators.py" in _wrapped_view 
    22.     return view_func(request, *args, **kwargs) 
File "/home/mknapczyk/Workspace/ASPHER/src/main/views.py" in edit_account 
    105.    context) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/shortcuts.py" in render 
    48.  return HttpResponse(loader.render_to_string(*args, **kwargs), 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/template/loader.py" in render_to_string 
    178.   return t.render(context_instance) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/template/base.py" in render 
    148.    return self._render(context) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/template/base.py" in _render 
    142.   return self.nodelist.render(context) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/template/base.py" in render 
    844.     bit = self.render_node(node, context) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/template/debug.py" in render_node 
    80.    return node.render(context) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/template/loader_tags.py" in render 
    126.   return compiled_parent._render(context) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/template/base.py" in _render 
    142.   return self.nodelist.render(context) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/template/base.py" in render 
    844.     bit = self.render_node(node, context) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/template/debug.py" in render_node 
    80.    return node.render(context) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/template/loader_tags.py" in render 
    65.     result = block.nodelist.render(context) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/template/base.py" in render 
    844.     bit = self.render_node(node, context) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/template/debug.py" in render_node 
    80.    return node.render(context) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/template/debug.py" in render 
    90.    output = self.filter_expression.resolve(context) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/template/base.py" in resolve 
    596.     obj = self.var.resolve(context) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/template/base.py" in resolve 
    734.    value = self._resolve_lookup(context) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/template/base.py" in _resolve_lookup 
    788.        current = current() 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/forms/forms.py" in as_table 
    257.    errors_on_separate_row=False) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/forms/forms.py" in _html_output 
    219.      'field': six.text_type(bf), 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/forms/forms.py" in __str__ 
    508.   return self.as_widget() 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/forms/forms.py" in as_widget 
    560.   return force_text(widget.render(name, self.value(), attrs=attrs)) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/forms/widgets.py" in render 
    504.   options = self.render_options(choices, [value]) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/forms/widgets.py" in render_options 
    530.   for option_value, option_label in chain(self.choices, choices): 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/forms/models.py" in __iter__ 
    1083.     yield self.choice(obj) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/forms/models.py" in choice 
    1090.   return (self.field.prepare_value(obj), self.field.label_from_instance(obj)) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/forms/models.py" in label_from_instance 
    1144.   return smart_text(obj) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/utils/encoding.py" in smart_text 
    52.  return force_text(s, encoding, strings_only, errors) 
File "/home/mknapczyk/Workspace/ASPHER/env/local/lib/python2.7/site-packages/django/utils/encoding.py" in force_text 
    87.     s = six.text_type(bytes(s), encoding, errors) 
File "/home/mknapczyk/Workspace/ASPHER/src/main/models.py" in __str__ 
    42.  return str(self.name) 

Exception Type: UnicodeEncodeError at /individual/acc/ 
Exception Value: 'ascii' codec can't encode character u'\u0142' in position 2: ordinal not in range(128) 

Answer 1

Ihr Modell __str__ ist Unicode nicht richtig handhaben. Sie müssen explizite Codierung verwenden:

def __str__(self): 
    return self.name.encode('utf8') 

oder verwenden Sie die force_bytes() utility function:

from django.utils.encoding import force_bytes 

def __str__(self): 
    return force_bytes(self.name) 

Die __str__ Methode muss zurückgeben bytestring in Python 2.

Sie wollen wahrscheinlich hinzufügen eine __unicode__ Methode für Ihr Modell, um dieses Problem an erster Stelle zu vermeiden:

def __unicode__(self): 
    return self.name 

Siehe auch Python __str__ versus __unicode__, sowie die Model.__unicode__ reference documentation.