Python3-pip3：AttributeError：“_NamespacePath”对象没有属性“排序”

Question

这个问题又来了，请多多包涵。

我在 Ubuntu 16.04 上尝试使用 pip3 安装 Kmodes，但出现此错误。我尝试从头开始删除 pip/pip3 并重新安装它并没有解决问题。

我发现了以前关于同一问题的问题，但它没有像 pip3 install --upgrade pip setuptools 那样解决它。

这个问题的解决方法是什么？我能做些什么来解决它？

Traceback (most recent call last):
  File "/usr/bin/pip3", line 9, in <module>
    from pip import main
  File "/home/stambouli/.local/lib/python3.5/site-packages/pip/__init__.py", line 26, in <module>
    from pip.utils import get_installed_distributions, get_prog
  File "/home/stambouli/.local/lib/python3.5/site-packages/pip/utils/__init__.py", line 27, in <module>
    from pip._vendor import pkg_resources
  File "/home/stambouli/.local/lib/python3.5/site-packages/pip/_vendor/pkg_resources/__init__.py", line 3018, in <module>
    @_call_aside
  File "/home/stambouli/.local/lib/python3.5/site-packages/pip/_vendor/pkg_resources/__init__.py", line 3004, in _call_aside
    f(*args, **kwargs)
  File "/home/stambouli/.local/lib/python3.5/site-packages/pip/_vendor/pkg_resources/__init__.py", line 3046, in _initialize_master_working_set
    dist.activate(replace=False)
  File "/home/stambouli/.local/lib/python3.5/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2578, in activate
    declare_namespace(pkg)
  File "/home/stambouli/.local/lib/python3.5/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2152, in declare_namespace
    _handle_ns(packageName, path_item)
  File "/home/stambouli/.local/lib/python3.5/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2092, in _handle_ns
    _rebuild_mod_path(path, packageName, module)
  File "/home/stambouli/.local/lib/python3.5/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2121, in _rebuild_mod_path
    orig_path.sort(key=position_in_sys_path)
AttributeError: '_NamespacePath' object has no attribute 'sort'

Answer 1

更改 pkg_resources/_init_.py 中的行（在我的情况下，这是在 ~/.env/lib/python3.5/site-packages/ 中）：

orig_path.sort(key=position_in_sys_path)  

到

orig_path = sorted(orig_path, key=position_in_sys_path)