python - Django 1.9.2 编码错误

Question

我在数据库中创建了一个模型和两个值。第一个是西里尔字母，第二个是拉丁文。

from __future__ import unicode_literals

from django.db import models

class Lecturer(models.Model):
    fname = models.CharField('First name', max_length=200)
    mname = models.CharField('Middle name',max_length=200)
    lname = models.CharField('Last name', max_length=200)
    pub_date = models.DateTimeField('Date published')

    def __str__(self):
        return "{} {} {}" .format(self.fname, self.mname, self.lname)

It seems work fine

但是当我尝试点击链接并编辑西里尔字母值时，出现错误。

UnicodeEncodeError at /admin/lecturers/lecturer/2/change/
'ascii' codec can't encode characters in position 0-3: ordinal not in range(128)
Request Method: GET
Request URL:    http://localhost:8000/admin/lecturers/lecturer/2/change/
Django Version: 1.9.2
Exception Type: UnicodeEncodeError
Exception Value:    
'ascii' codec can't encode characters in position 0-3: ordinal not in range(128)
Exception Location: /usr/local/lib/python2.7/dist-packages/django/utils/encoding.py in force_text, line 80
Python Executable:  /usr/bin/python
Python Version: 2.7.6
Python Path:    
['/home/vald/project',
 '/usr/lib/python2.7',
 '/usr/lib/python2.7/plat-i386-linux-gnu',
 '/usr/lib/python2.7/lib-tk',
 '/usr/lib/python2.7/lib-old',
 '/usr/lib/python2.7/lib-dynload',
 '/usr/local/lib/python2.7/dist-packages',
 '/usr/lib/python2.7/dist-packages',
 '/usr/lib/python2.7/dist-packages/PILcompat',
 '/usr/lib/python2.7/dist-packages/gtk-2.0',
 '/usr/lib/pymodules/python2.7',
 '/usr/lib/python2.7/dist-packages/ubuntu-sso-client']
Server time:    Tue, 2 Feb 2016 20:30:07 +0200

Answer 1

要在 Python 2.7 中通过 __unicode__ 使用 __str__ 方法，请使用提供的 python_2_unicode_compatible装饰者:

from __future__ import unicode_literals

from django.db import models
from django.utils.encoding import python_2_unicode_compatible


@python_2_unicode_compatible
class Lecturer(models.Model):
    fname = models.CharField('First name', max_length=200)
    mname = models.CharField('Middle name',max_length=200)
    lname = models.CharField('Last name', max_length=200)
    pub_date = models.DateTimeField('Date published')

    def __str__(self):
        return "{} {} {}" .format(self.fname, self.mname, self.lname)

否则你将不得不使用 __unicode__ 而不是 __str__。