python - pkg_resources.resource_stream在python3上失败

我正在尝试使用pkg_resources加载项目中存在的资源，但是它引发了一个异常，说它引用了“如果没有'get_data()'，加载程序将无法执行此操作” 。我不确定我在这里做错什么，还是pkg_resources在python 3.3上被破坏了。我正在使用python 3.3.3准确地说。这是我正在尝试执行的代码

>>> import pkg_resources
>>> data = pkg_resources.resource_stream('configgenerator', 'schema_rules.yml')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/users/frank/workspace/configgenerator/env/lib/python3.3/site-packages/distribute-0.6.31-py3.3.egg/pkg_resources.py", line 931, in resource_stream
    self, resource_name
  File "/home/users/frank/workspace/configgenerator/env/lib/python3.3/site-packages/distribute-0.6.31-py3.3.egg/pkg_resources.py", line 1207, in get_resource_stream
    return StringIO(self.get_resource_string(manager, resource_name))
  File "/home/users/frank/workspace/configgenerator/env/lib/python3.3/site-packages/distribute-0.6.31-py3.3.egg/pkg_resources.py", line 1210, in get_resource_string
    return self._get(self._fn(self.module_path, resource_name))
  File "/home/users/frank/workspace/configgenerator/env/lib/python3.3/site-packages/distribute-0.6.31-py3.3.egg/pkg_resources.py", line 1289, in _get
    "Can't perform this operation for loaders without 'get_data()'"
NotImplementedError: Can't perform this operation for loaders without 'get_data()'
>>>

有谁知道如何解决这个问题？

最佳答案

发生这种情况有多种原因，但是最常见的是，该软件包不是可导入模块，因为没有__init__.py。