iPython给出意外关键字参数“inputhook”的错误

Question

我使用Miniconda在新Mac上安装了Python 3，并设置如下：

• macOS Catalina 10.15.1
• Conda 4.7.12
• Python 3.7.5
• iPython 7.9.0

当我试图在终端中运行iPython时，我会收到以下错误：

Traceback (most recent call last):
  File "/Users/g72/miniconda3/bin/ipython", line 11, in <module>
    sys.exit(start_ipython())
  File "/Users/g72/miniconda3/lib/python3.7/site-packages/IPython/__init__.py", line 125, in start_ipython
    return launch_new_instance(argv=argv, **kwargs)
  File "/Users/g72/miniconda3/lib/python3.7/site-packages/traitlets/config/application.py", line 663, in launch_instance
    app.initialize(argv)
  File "</Users/g72/miniconda3/lib/python3.7/site-packages/decorator.py:decorator-gen-113>", line 2, in initialize
  File "/Users/g72/miniconda3/lib/python3.7/site-packages/traitlets/config/application.py", line 87, in catch_config_error
    return method(app, *args, **kwargs)
  File "/Users/g72/miniconda3/lib/python3.7/site-packages/IPython/terminal/ipapp.py", line 317, in initialize
    self.init_shell()
  File "/Users/g72/miniconda3/lib/python3.7/site-packages/IPython/terminal/ipapp.py", line 333, in init_shell
    ipython_dir=self.ipython_dir, user_ns=self.user_ns)
  File "/Users/g72/miniconda3/lib/python3.7/site-packages/traitlets/config/configurable.py", line 412, in instance
    inst = cls(*args, **kwargs)
  File "/Users/g72/miniconda3/lib/python3.7/site-packages/IPython/terminal/interactiveshell.py", line 464, in __init__
    self.init_prompt_toolkit_cli()
  File "/Users/g72/miniconda3/lib/python3.7/site-packages/IPython/terminal/interactiveshell.py", line 296, in init_prompt_toolkit_cli
    **self._extra_prompt_options())
TypeError: __init__() got an unexpected keyword argument 'inputhook'

If you suspect this is an IPython bug, please report it at:
    https://github.com/ipython/ipython/issues
or send an email to the mailing list at ipython-dev@python.org

You can print a more detailed traceback right now with "%tb", or use "%debug"
to interactively debug it.

Extra-detailed tracebacks for bug-reporting purposes can be enabled via:
    c.Application.verbose_crash=True

此错误似乎与__init__()方法关键字参数'inputhook‘有关。对如何解决这个问题有什么建议吗？

Answer 1

它可能是这个问题，也可能是一个新的相关问题，因为它应该被修复：https://github.com/ipython/ipython/issues/11962

降级prompt_toolkit为我们工作：conda install prompt_toolkit==2.0.10

编辑:如果可能的话，kmario23's response (upgrade IPython installation) is now preferable！

Answer 2

当使用小于或等于IPython的版本时，会发生此错误。因此，一个更好的选择是将IPython外壳升级到ipython-7.10.1版本，这也解决了这个问题：

$ conda update ipython