小编nic*_*ero的帖子

~/Documents/django1/mysite$ python manage.py syncdb
Traceback (most recent call last):

  File "manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)

  File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 453, in execute_from_command_line
    utility.execute()

  File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 392, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)

  File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 263, in fetch_command
    app_name = get_commands()[subcommand]

  File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 109, in get_commands
    apps = settings.INSTALLED_APPS

  File "/usr/local/lib/python2.7/dist-packages/django/conf/__init__.py", line 53, in __getattr__
    self._setup(name)

  File "/usr/local/lib/python2.7/dist-packages/django/conf/__init__.py", line 48, in _setup
    self._wrapped = Settings(settings_module)

  File "/usr/local/lib/python2.7/dist-packages/django/conf/__init__.py", line 132, in __init__
    mod = importlib.import_module(self.SETTINGS_MODULE)

  File "/usr/local/lib/python2.7/dist-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name) …

我已经编译了一个运算符,关键字等列表,唯一一个不理解的是>>或者在python中.

请解释>>和<<后面的数学.

谢谢.