ImportError：没有名为流的模块答案

【问题标题】：ImportError: No module named streamsImportError：没有名为流的模块
【发布时间】：2014-04-16 14:00:00
【问题描述】：

我正在本地设置 django(1.6) 项目。我已经安装了包括活动流在内的所有模块，但是当我尝试运行服务器“python manage.py runserver 8081”时，我收到了这个错误

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 399, 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/base.py", line 242, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 284, in execute
    self.validate()
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 310, in validate
    num_errors = get_validation_errors(s, app)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/validation.py", line 34, in get_validation_errors
    for (app_name, error) in get_app_errors().items():
  File "/usr/local/lib/python2.7/dist-packages/django/db/models/loading.py", line 196, in get_app_errors
    self._populate()
  File "/usr/local/lib/python2.7/dist-packages/django/db/models/loading.py", line 78, in _populate
    self.load_app(app_name)
  File "/usr/local/lib/python2.7/dist-packages/django/db/models/loading.py", line 99, in load_app
    models = import_module('%s.models' % app_name)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/importlib.py", line 40, in import_module
    __import__(name)
  File "/usr/local/lib/python2.7/dist-packages/actstream/models.py", line 46, in <module>
    class Action(models.Model):
  File "/usr/local/lib/python2.7/dist-packages/actstream/models.py", line 99, in Action
    objects = actstream_settings.get_action_manager()
  File "/usr/local/lib/python2.7/dist-packages/actstream/settings.py", line 24, in get_action_manager
    return getattr(__import__(j(a[:-1]), {}, {}, [a[-1]]), a[-1])()
ImportError: No module named streams

【问题讨论】：

您是否安装了setuptools 快速执行pip freeze | grep -i stream 时会发生什么？
您能否确认您已在系统范围的 python 的site-packages 中安装了此软件包，或者您是否已获取正确的virtualenv？如果你pip uninstall django-activity-stream && pip install django-activity-stream，你有什么运气。
是的，软件包已在系统范围内安装。卸载并安装后出现同样的错误。
你是如何验证安装的？

标签： python django

【解决方案1】：

似乎您的 django 项目中没有streams.py 文件，您必须在其中描述继承自actstream.ActionManager 的SomeActionManager。如果您在项目设置中描述了它但不创建streams.py，则acstream 引发ImportError，如果您没有描述- acstream 加载默认模块。这里的设置来自example_project，请查看 ACTSTREAM_SETTINGS 部分。

【讨论】：