` `ImportError:安装AppKit和PyObjC后没有命名为AppKit`的模块

Question

我正在尝试让一些Python代码在Mac上的Anaconda上使用Python2.7进行全新的安装。这些都是以前在同一台机器上工作的东西。

我得到的错误是：

Mac:~ kuzzooroo$ python
Python 2.7.15 |Anaconda, Inc.| (default, Dec 14 2018, 13:10:39)
[GCC 4.2.1 Compatible Clang 4.0.1 (tags/RELEASE_401/final)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import AppKit
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named AppKit

小写也不起作用：

>>> import appkit
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/kuzzooroo/anaconda2/lib/python2.7/site-packages/appkit/__init__.py", line 11, in <module>
    from AppKit import _metadata
ImportError: No module named AppKit

我做了很多搜索，关于如何处理这个错误的建议大多是“确保您已经安装了X”。下面是我得到的信息：

Mac:~ kuzzooroo$ brew install PyGObject PyGObject3
Warning: pygobject 2.28.7_1 is already installed and up-to-date
To reinstall 2.28.7_1, run `brew reinstall pygobject`
Warning: pygobject3 3.30.4 is already installed and up-to-date
To reinstall 3.30.4, run `brew reinstall pygobject3`
Mac:~ kuzzooroo$ pip install AppKit PyObjC PyObjC-core
Requirement already satisfied: AppKit in ./anaconda2/lib/python2.7/site-packages (0.2.8)
Requirement already satisfied: PyObjC in ./anaconda2/lib/python2.7/site-packages (5.1.2)
Requirement already satisfied: PyObjC-core in ./anaconda2/lib/python2.7/site-packages (5.1.2)
Requirement already satisfied: ... <many more lines>

brew install步骤改变了一些不同的错误，但正如您所看到的，它们并没有给我留下一个可以工作的设置。

Answer 1

事实证明，有人编写了一个名为AppKit的包，它是一个完全不同的Mac操作系统组件。下面是另一个AppKit：

$ pip search appkit
AppKit (0.2.8)  - Desktop application framework based on Webkit HTML5, CSS3, Javascript and Python

除了PyObjC之外，安装它还会产生冲突，导致出现无用的错误消息No module named AppKit (实际上，使用此名称运行的东西不止一个，而是两个)。

先运行conda uninstall AppKit，然后运行pip install --upgrade --force-reinstall PyObjC PyObjC-core解决了这个问题。