Question

我是django和python的新手，尝试在我的系统上运行一段django代码，但我遇到了这些问题，即运行版本2.7 python和v1.4 django

$ python manage.py runserver
Running in development mode.
Running in development mode.
Running in development mode.
Running in development mode.
Validating models...

HACKUING USER MODEL
Unhandled exception in thread started by <bound method Command.inner_run of <django.contrib.staticfiles.management.commands.runserver.Command object at 0x101981e50>>
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/core/management/commands/runserver.py", line 91, in inner_run
    self.validate(display_num_errors=True)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/core/management/base.py", line 266, in validate
    num_errors = get_validation_errors(s, app)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/core/management/validation.py", line 30, in get_validation_errors
    for (app_name, error) in get_app_errors().items():
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/db/models/loading.py", line 158, in get_app_errors
    self._populate()
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/db/models/loading.py", line 64, in _populate
    self.load_app(app_name, True)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/db/models/loading.py", line 88, in load_app
    models = import_module('.models', app_name)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/Users/Kinnovate/Desktop/fsdjango/platformsite/notices/models.py", line 9, in <module>
    from common.fields import PickleField
  File "/Users/Kinnovate/Desktop/fsdjango/platformsite/common/fields/__init__.py", line 1, in <module>
    from pickle import *
  File "/Users/Kinnovate/Desktop/fsdjango/platformsite/common/fields/pickle.py", line 27, in <module>
    mysql_backend = settings.DATABASE_ENGINE == 'mysql'
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/utils/functional.py", line 186, in inner
    return func(self._wrapped, *args)
AttributeError: 'Settings' object has no attribute 'DATABASE_ENGINE'

这是与问题

相关的settings.py的一部分

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3', # Add 'postgresql_psycopg2', 'postgresql', 'mysql', 'sqlite3' or 'oracle'.
        'NAME': os.path.join(DIRNAME, 'database.sqlite3'), # Or path to database file if using sqlite3.
        'USER': '',                      # Not used with sqlite3.
        'PASSWORD': '',                  # Not used with sqlite3.
        'HOST': '',                      # Set to empty string for localhost. Not used with sqlite3.
        'PORT': '',                      # Set to empty string for default. Not used with sqlite3.
    }
 }

我该如何解决这个问题？

Answer 1

什么是/Users/Kinnovate/Desktop/fsdjango/platformsite/common/fields/pickle.py？这是你的代码吗？然后你有一个错误，因为你的seetings中确实没有DATABASE_ENGINE。请改用settings.DATABASES['default']['ENGINE']。

Answer 2

你遗失了什么

因为您的回溯数据库必须是mysql。

File "/Users/Kinnovate/Desktop/fsdjango/platformsite/common/fields/pickle.py", line 27, in <module>
    mysql_backend = settings.DATABASE_ENGINE == 'mysql'
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/utils/functional.py", line 186, in inner
    return func(self._wrapped, *args)

因为它输入mysql_backend = settings.DATABASE_ENGINE == 'mysql'行。

根据您的设置'ENGINE': 'django.db.backends.sqlite3',，因此必须输入sqlite，请检查您的应用，因为您的settings.py可能会从其他地方引荐。

AttributeError：'Settings'对象没有属性'DATABASE_ENGINE'

2 个答案: