Python KeyError:u'；可编辑'；第一次执行./manage.py迁移时

我最近从Django 1.3升级到1.8，在尝试安装迁移时遇到问题。以前使用过South，并通过settings.py卸载了它，并删除了每个应用程序中的文件夹

尝试设置迁移时，我遇到以下错误：

root@ip:/home/# python manage.py migrate
Operations to perform:
  Synchronize unmigrated apps: web_forms, staticfiles, tinymce, messages, miscellaneous, generalpagess, gallery, template, import, navigation, frontpage, association
  Apply all migrations: admin, contenttypes, sites, auth, sessions
Synchronizing apps without migrations:
  Creating tables...
    Running deferred SQL...
  Installing custom SQL...
Running migrations:
  Rendering model states...Traceback (most recent call last):
  File "manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/usr/lib/python2.7/dist-packages/django/core/management/__init__.py", line 354, in execute_from_command_line
    utility.execute()
  File "/usr/lib/python2.7/dist-packages/django/core/management/__init__.py", line 346, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/lib/python2.7/dist-packages/django/core/management/base.py", line 394, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/usr/lib/python2.7/dist-packages/django/core/management/base.py", line 445, in execute
    output = self.handle(*args, **options)
  File "/usr/lib/python2.7/dist-packages/django/core/management/commands/migrate.py", line 222, in handle
    executor.migrate(targets, plan, fake=fake, fake_initial=fake_initial)
  File "/usr/lib/python2.7/dist-packages/django/db/migrations/executor.py", line 100, in migrate
    state.apps  # Render all real_apps -- performance critical
  File "/usr/lib/python2.7/dist-packages/django/utils/functional.py", line 59, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/usr/lib/python2.7/dist-packages/django/db/migrations/state.py", line 166, in apps
    return StateApps(self.real_apps, self.models)
  File "/usr/lib/python2.7/dist-packages/django/db/migrations/state.py", line 226, in __init__
    self.real_models.append(ModelState.from_model(model, exclude_rels=True))
  File "/usr/lib/python2.7/dist-packages/django/db/migrations/state.py", line 345, in from_model
    name, path, args, kwargs = field.deconstruct()
  File "/usr/lib/python2.7/dist-packages/django/db/models/fields/__init__.py", line 1253, in deconstruct
    del kwargs['editable']
KeyError: u'editable'

---

我一直在互联网上搜寻，试图找到一个解决方案，但没有成功。

我终于找到了问题所在。它是从读取此文件中发现的

File "/usr/lib/python2.7/dist-packages/django/db/models/fields/__init__.py", line 1253`

上面说

def deconstruct(self):
    name, path, args, kwargs = super(DateField, self).deconstruct()
    if self.auto_now:
        kwargs['auto_now'] = True
    if self.auto_now_add:
        kwargs['auto_now_add'] = True
    if self.auto_now or self.auto_now_add:
        del kwargs['editable']
        del kwargs['blank']
    return name, path, args, kwargs

我的代码为时间字段设置了

auto\u now\u add=True

，在阅读了来自颈部胡须的故事后，我可以从中收集到不好的时间字段：

---

del kwargs['editable']

部分抛出了错误。

当我有一个带有日期时间字段的模型时，我遇到了类似的问题。模型有点像贝娄

class MyModel(models.Model):
    time = models.DatetimeField(auto_now_add=True)
    time.editable = True

---

删除最后一行后，我可以运行python manage.py makemigrations appname命令

我希望您先运行了

makemigrations

？谢谢@SijanBhandari，我从那里收到了相同的错误，请发布与迁移相关的models.py。如果可以刷新数据，请尝试

dropdb db_name>

，然后再次创建数据库并运行makemigrations。它会工作的。检查这个回答：猴子补丁这个方法一定有其他的选择

class MyModel(models.Model):
    time = models.DatetimeField(auto_now_add=True)
    time.editable = True