在学习第四章数据库设计，新建apps包存放各app那一节遇到问题

在CMD下运行如下命令报错

C:\Users\Edward\PycharmProjects\MxOnline>python manage.py runserver 0.0.0.0:8000

Traceback (most recent call last):

  File "manage.py", line 8, in <module>

    from django.core.management import execute_from_command_line

ImportError: No module named django.core.management

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已经在setting中设置好 ：sys.path.insert(0, os.path.join(BASE_DIR, 'apps'))

manage.py中的代码如下：

#!/usr/bin/env python
import os
import sys

if __name__ == "__main__":
   os.environ.setdefault("DJANGO_SETTINGS_MODULE", "MxOnline.settings")

   from django.core.management import execute_from_command_line

   execute_from_command_line(sys.argv)

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stackoverflow.com提供的解决办法如下，不知用哪个

http://stackoverflow.com/questions/14013728/django-no-module-named-django-core-management