Python UnicodeEncodeError:&x27；ascii'；编解码器可以'；t编码字符u'\xc5&x27；位置35：序号不在范围内（128）

我目前正在使用获取表单字段的ISO国家名称列表。它在我的网站上显示时没有错误，但在Django的管理网站上，由于存在非ASCII国家名称，它会导致上述错误：

Unicode错误提示：无法编码/解码的字符串为：itanÅland

我已经读到类似的问题可以通过

encode（'utf-8'）

属性来解决，但是如果不接触Django Admin本身，这似乎不是很可行。如果有人能解决这个问题，我将不胜感激

Models.py（消息）：

从未来导入unicode文字 从django.db导入模型 从auth.models导入用户 从tourlisting.models导入教程 课程日程安排（models.Model）： 开始日期=models.DateField（） end_date=models.DateField（） 定义（自我）： 返回“行程表”+str（self.id） 课堂活动（models.Model）： 开始时间=models.DateTimeField（） end_time=models.DateTimeField（） description=models.CharField（最大长度=500，默认值=“”） 位置=型号.CharField（最大长度=200） 行程=型号。外键（行程） 类ThreadManager（models.Manager）： def create_线程（自我、旅行、行程、旅行者）： thread=self.create（旅游=旅游，行程=旅游，旅行者=旅行者） 回位螺纹 类线程（models.Model）： tour=模型。外键（tour） 行程=型号。ForeignKey（行程，null=True） traveller=型号。外键（用户） 对象=线程管理器（） 定义（自我）： 返回“线程”+str（self.id） 类消息（models.Model）： message=models.TextField（） sender=models.ForeignKey（用户，相关的\u name='sent\u messages'） 线程=模型。外键（线程） 发送的时间=models.DateTimeField（自动现在添加=True） time\u read=models.DateTimeField（null=True，blank=True） Models.py（tourlisting）：

从未来导入unicode文字 从django.db导入模型 从auth.models导入用户配置文件，用户 从djmoney.models.fields导入MoneyField 从django.utils导入时区 从django_countries.fields导入CountryField 导入日期时间 类别（models.Model）： name=models.CharField（最大长度=100，唯一性=True） 定义（自我）： 返回self.name 课堂参观（模型.模型）： tour_name=models.CharField（最大长度=100，默认值=“”） tour_desc=models.CharField（'tour Description'，max_length=10000，默认值=“”） 导游=模型。外键（用户配置文件） 巡更长度=models.IntegerField（'巡更长度（天）”，默认值为3） country=CountryField（默认值为“”，最大长度为100） city=models.CharField（最大长度=1000，默认值=“”） ppl_min=models.IntegerField（'最小旅行人数'，默认值=1） ppl_max=models.IntegerField（'if travelers'的最大数量），默认值为10） 价格=货币字段（最大数字=6，小数点=2，默认货币=USD，默认值=50） 类别=型号。外键（类别） 发布日期=models.DateField（'datepublished'，auto\u now\u add=True） active=models.BooleanField（默认值=True） 已删除=models.BooleanField（默认值=False） 定义（自我）： 按{1}返回“{0}”。格式（self.tour\u name，self.tour\u guide） def最近被列入（自我）： return self.pub_date>=timezone.now（）-datetime.timedelta（天=7） 堆栈跟踪：

Environment: Request Method: GET Request URL: http://localhost:8000/admin/messaging/thread/2/change/ Django Version: 1.9.2 Python Version: 2.7.10 Installed Applications: ('django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'django.contrib.messages', 'django.contrib.admin', 'django.contrib.staticfiles', 'messaging', 'crispy_forms', 'djmoney', 'django_countries', 'haystack', 'pysolr', 'django_tables2', 'phonenumber_field', 'django_extensions') Installed Middleware: ('django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.auth.middleware.SessionAuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware', 'django.middleware.security.SecurityMiddleware') Template error: In template /usr/local/lib/python2.7/dist-packages/django/contrib/admin/templates/admin/change_form.html, error at line 33 ascii 23 : {% endblock %} 24 : {% endif %} 25 : 26 : {% block content %} 27 : {% block object-tools %} 28 : {% if change %}{% if not is_popup %} 29 : 30 : {% block object-tools-items %} 31 :

32 : {% url opts|admin_urlname:'history' original.pk|admin_urlquote as history_url %} 33 : {% trans "History" %} 34 :

35 : {% if has_absolute_url %}

{% trans "View on site" %}

{% endif %} 36 : {% endblock %} 37 : 38 : {% endif %}{% endif %} 39 : {% endblock %} 40 : {% csrf_token %}{% block form_top %}{% endblock %} 41 : 42 : {% if is_popup %}{% endif %} 43 : {% if to_field %}{% endif %} Traceback: File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response 174. response = self.process_exception_by_middleware(e, request) File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response 172. response = response.render() File "/usr/local/lib/python2.7/dist-packages/django/template/response.py" in render 160. self.content = self.rendered_content File "/usr/local/lib/python2.7/dist-packages/django/template/response.py" in rendered_content 137. content = template.render(context, self._request) File "/usr/local/lib/python2.7/dist-packages/django/template/backends/django.py" in render 95. return self.template.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 206. return self._render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in _render 197. return self.nodelist.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py" in render 173. return compiled_parent._render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in _render 197. return self.nodelist.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py" in render 173. return compiled_parent._render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in _render 197. return self.nodelist.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py" in render 69. result = block.nodelist.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py" in render 69. result = block.nodelist.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py" in render 220. nodelist.append(node.render_annotated(context)) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py" in render 209. return template.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 208. return self._render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in _render 197. return self.nodelist.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py" in render 220. nodelist.append(node.render_annotated(context)) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py" in render 220. nodelist.append(node.render_annotated(context)) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py" in render 326. return nodelist.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py" in render 326. return nodelist.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 1049. return render_value_in_context(output, context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_value_in_context 1026. value = force_text(value) File "/usr/local/lib/python2.7/dist-packages/django/utils/encoding.py" in force_text 78. s = six.text_type(s) File "/usr/local/lib/python2.7/dist-packages/django/utils/html.py" in 381. klass.__unicode__ = lambda self: mark_safe(klass_unicode(self)) File "/usr/local/lib/python2.7/dist-packages/django/forms/boundfield.py" in __str__ 43. return self.as_widget() File "/usr/local/lib/python2.7/dist-packages/django/forms/boundfield.py" in as_widget 101. return force_text(widget.render(name, self.value(), attrs=attrs)) File "/usr/local/lib/python2.7/dist-packages/django/contrib/admin/widgets.py" in render 291. 'widget': self.widget.render(name, value, *args, **kwargs), File "/usr/local/lib/python2.7/dist-packages/django/forms/widgets.py" in render 528. options = self.render_options(choices, [value]) File "/usr/local/lib/python2.7/dist-packages/django/forms/widgets.py" in render_options 554. for option_value, option_label in chain(self.choices, choices): File "/usr/local/lib/python2.7/dist-packages/django/forms/models.py" in __iter__ 1110. yield self.choice(obj) File "/usr/local/lib/python2.7/dist-packages/django/forms/models.py" in choice 1117. return (self.field.prepare_value(obj), self.field.label_from_instance(obj)) File "/usr/local/lib/python2.7/dist-packages/django/forms/models.py" in label_from_instance 1180. return smart_text(obj) File "/usr/local/lib/python2.7/dist-packages/django/utils/encoding.py" in smart_text 42. return force_text(s, encoding, strings_only, errors) File "/usr/local/lib/python2.7/dist-packages/django/utils/encoding.py" in force_text 80. s = six.text_type(bytes(s), encoding, errors) Exception Type: UnicodeEncodeError at /admin/messaging/thread/2/change/ Exception Value: 'ascii' codec can't encode character u'\xc5' in position 35: ordinal not in range(128) 环境： 请求方法：获取 请求URL:http://localhost:8000/admin/messaging/thread/2/change/ Django版本：1.9.2 Python版本：2.7.10 已安装的应用程序： （“django.contrib.auth”， “django.contrib.contenttypes”， “django.contrib.sessions”， “django.contrib.sites”， “django.contrib.messages”， “django.contrib.admin”， “django.contrib.staticfiles”， “消息传递”， “脆皮形式”， “钱”， “django_国家”， “干草堆”， “皮索尔”， “django_表2”， '电话号码\字段'， “django_扩展名”） 已安装的中间件： （'django.contrib.sessions.middleware.SessionMiddleware'， 'django.middleware.common.CommonMiddleware'， “django.middleware.csrf.CsrfViewMiddleware”， 'django.contrib.auth.middleware.AuthenticationMiddleware'， 'django.contrib.auth.middleware.SessionAuthenticationMiddleware'， 'django.contrib.messages.middleware.MessageMiddleware'， 'django.middleware.clickjacking.xFrameOptions中间件'， 'django.middleware.security.SecurityMiddleware'） 模板错误： 在template/usr/local/lib/python2.7/dist-packages/django/contrib/admin/templates/admin/change_form.html中，第33行出现错误 ascii 23:{%endblock%} 24:{%endif%} 25 : 26:{%block content%} 27:{%block object tools%} 28:{%if-change%}{%if-not是_-popup%} 29 : 30:{%block object tools items%} 31:

32:{%url选择| admin_urlname:'history'original.pk | admin_urlquote作为history_url%} 33:{%trans“History”%} 34：

35:{%if有绝对url%}

{%trans“站点上的视图”}

{%endif%} 36:{%endblock%} 37 : 38:{%endif%}{%endif%} 39:{%endblock%} 40:{%csrf_令牌%}{%block form_top%}{%endblock%} 41 : 42:{%if是_popup%}{%endif%} 43:{%if to_field%}{%endif%} 回溯： get_响应中的文件“/usr/local/lib/python2.7/dist packages/django/core/handlers/base.py” 174响应=self.process\u exception\u by_ from __future__ import unicode_literals from django.db import models from auth.models import UserProfile, User from djmoney.models.fields import MoneyField from django.utils import timezone from django_countries.fields import CountryField import datetime class Category(models.Model): name = models.CharField(max_length=100, unique=True) def __str__(self): return self.name class Tour(models.Model): tour_name = models.CharField(max_length=100, default='') tour_desc = models.CharField('Tour Description', max_length=10000, default='') tour_guide = models.ForeignKey(UserProfile) tour_length = models.IntegerField('Tour length (days)', default = 3) country = CountryField(default='', max_length=100) city = models.CharField(max_length=1000, default='') ppl_min = models.IntegerField('Minimum no. of travellers', default=1) ppl_max = models.IntegerField('Maximum no. if travellers', default=10) price = MoneyField(max_digits=6,decimal_places=2, default_currency='USD', default=50) category = models.ForeignKey(Category) pub_date = models.DateField('date published', auto_now_add=True) active = models.BooleanField(default=True) deleted = models.BooleanField(default=False) def __str__(self): return "{0} by {1}".format(self.tour_name, self.tour_guide) def was_listed_recently(self): return self.pub_date >= timezone.now() - datetime.timedelta(days=7) Environment: Request Method: GET Request URL: http://localhost:8000/admin/messaging/thread/2/change/ Django Version: 1.9.2 Python Version: 2.7.10 Installed Applications: ('django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'django.contrib.messages', 'django.contrib.admin', 'django.contrib.staticfiles', 'messaging', 'crispy_forms', 'djmoney', 'django_countries', 'haystack', 'pysolr', 'django_tables2', 'phonenumber_field', 'django_extensions') Installed Middleware: ('django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.auth.middleware.SessionAuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware', 'django.middleware.security.SecurityMiddleware') Template error: In template /usr/local/lib/python2.7/dist-packages/django/contrib/admin/templates/admin/change_form.html, error at line 33 ascii 23 : {% endblock %} 24 : {% endif %} 25 : 26 : {% block content %} 27 : {% block object-tools %} 28 : {% if change %}{% if not is_popup %} 29 : 30 : {% block object-tools-items %} 31 :

32 : {% url opts|admin_urlname:'history' original.pk|admin_urlquote as history_url %} 33 : {% trans "History" %} 34 :

35 : {% if has_absolute_url %}

{% trans "View on site" %}

{% endif %} 36 : {% endblock %} 37 : 38 : {% endif %}{% endif %} 39 : {% endblock %} 40 : {% csrf_token %}{% block form_top %}{% endblock %} 41 : 42 : {% if is_popup %}{% endif %} 43 : {% if to_field %}{% endif %} Traceback: File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response 174. response = self.process_exception_by_middleware(e, request) File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response 172. response = response.render() File "/usr/local/lib/python2.7/dist-packages/django/template/response.py" in render 160. self.content = self.rendered_content File "/usr/local/lib/python2.7/dist-packages/django/template/response.py" in rendered_content 137. content = template.render(context, self._request) File "/usr/local/lib/python2.7/dist-packages/django/template/backends/django.py" in render 95. return self.template.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 206. return self._render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in _render 197. return self.nodelist.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py" in render 173. return compiled_parent._render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in _render 197. return self.nodelist.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py" in render 173. return compiled_parent._render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in _render 197. return self.nodelist.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py" in render 69. result = block.nodelist.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py" in render 69. result = block.nodelist.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py" in render 220. nodelist.append(node.render_annotated(context)) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py" in render 209. return template.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 208. return self._render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in _render 197. return self.nodelist.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py" in render 220. nodelist.append(node.render_annotated(context)) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py" in render 220. nodelist.append(node.render_annotated(context)) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py" in render 326. return nodelist.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py" in render 326. return nodelist.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render 1049. return render_value_in_context(output, context) File "/usr/local/lib/python2.7/dist-packages/django/template/base.py" in render_value_in_context 1026. value = force_text(value) File "/usr/local/lib/python2.7/dist-packages/django/utils/encoding.py" in force_text 78. s = six.text_type(s) File "/usr/local/lib/python2.7/dist-packages/django/utils/html.py" in 381. klass.__unicode__ = lambda self: mark_safe(klass_unicode(self)) File "/usr/local/lib/python2.7/dist-packages/django/forms/boundfield.py" in __str__ 43. return self.as_widget() File "/usr/local/lib/python2.7/dist-packages/django/forms/boundfield.py" in as_widget 101. return force_text(widget.render(name, self.value(), attrs=attrs)) File "/usr/local/lib/python2.7/dist-packages/django/contrib/admin/widgets.py" in render 291. 'widget': self.widget.render(name, value, *args, **kwargs), File "/usr/local/lib/python2.7/dist-packages/django/forms/widgets.py" in render 528. options = self.render_options(choices, [value]) File "/usr/local/lib/python2.7/dist-packages/django/forms/widgets.py" in render_options 554. for option_value, option_label in chain(self.choices, choices): File "/usr/local/lib/python2.7/dist-packages/django/forms/models.py" in __iter__ 1110. yield self.choice(obj) File "/usr/local/lib/python2.7/dist-packages/django/forms/models.py" in choice 1117. return (self.field.prepare_value(obj), self.field.label_from_instance(obj)) File "/usr/local/lib/python2.7/dist-packages/django/forms/models.py" in label_from_instance 1180. return smart_text(obj) File "/usr/local/lib/python2.7/dist-packages/django/utils/encoding.py" in smart_text 42. return force_text(s, encoding, strings_only, errors) File "/usr/local/lib/python2.7/dist-packages/django/utils/encoding.py" in force_text 80. s = six.text_type(bytes(s), encoding, errors) Exception Type: UnicodeEncodeError at /admin/messaging/thread/2/change/ Exception Value: 'ascii' codec can't encode character u'\xc5' in position 35: ordinal not in range(128)

@python_2_unicode_compatible
class Thread(models.Model):
     ...

class Tour(models.Model):
    ...
    def __str__(self):
        return "{0} by {1}".format(self.tour_name.encode('utf8'), self.tour_guide)

def __str__(self):
    return u"{0} by {1}".format(self.tour_name, self.tour_guide)