python - 将 Spyder 升级到 4.0.1 时出错 : ModuleNotFoundError: No module named 'IPython.core.inputtransformer2'

Question

我最近通过 Anaconda 通过 conda update spyder 升级到 Spyder 4.0.1 .现在，当我尝试通过 Anaconda Navigator 启动 Spyder 时，程序会自动崩溃并显示以下转储:

Traceback (most recent call last):
File "/Users/ed/anaconda/lib/python3.6/site-packages/spyder/app/mainwindow.py", line 3718, in main
mainwindow = run_spyder(app, options, args)
File "/Users/ed/anaconda/lib/python3.6/site-packages/spyder/app/mainwindow.py", line 3559, in run_spyder
main.setup()
File "/Users/ed/anaconda/lib/python3.6/site-packages/spyder/app/mainwindow.py", line 1010, in setup
from spyder.plugins.ipythonconsole.plugin import IPythonConsole
File "/Users/ed/anaconda/lib/python3.6/site-packages/spyder/plugins/ipythonconsole/plugin.py", line 52, in 
from spyder.plugins.ipythonconsole.widgets import ClientWidget
File "/Users/ed/anaconda/lib/python3.6/site-packages/spyder/plugins/ipythonconsole/widgets/__init__.py", line 16, in 
from .debugging import DebuggingWidget
File "/Users/ed/anaconda/lib/python3.6/site-packages/spyder/plugins/ipythonconsole/widgets/debugging.py", line 22, in 
from IPython.core.inputtransformer2 import TransformerManager
ModuleNotFoundError: No module named 'IPython.core.inputtransformer2'

我找不到任何有类似错误的人。正如有人建议的那样，我更新了 IPython，但它没有解决问题。有任何想法吗？

Answer 1

...因为这些都不适合我，所以我是如何解决它的:

通过 conda list 检查您拥有的 IPython 版本
就我而言，我得到了一个相当旧的版本 5.8.0而不是最近的
(在撰写本文时 7.19.0 ...通过 conda search ipython 检查可用版本)

自 conda update ipython没有提供最新版本，我决定
手动运行安装最新版本的命令
(对我来说这是 conda install -c conda-forge ipython=7.19.0 )

就是这样...