AttributeError:类型对象"Callable"没有属性"_abc_registry" [英] AttributeError: type object 'Callable' has no attribute '_abc_registry'

问题描述

打开jupyter笔记本时出现错误.

When I open my jupyter notebook I get errors.

我使用google寻求帮助，但找不到答案.

I use google for help, but I can't find an answer.

我正在使用macOS mojave并使用python 3.7.2.我重新安装了Jupiter笔记本，但没有任何更改.

I'm on macOS mojave and using python 3.7.2.I reinstalled my Jupiter notebook but no change.

当我输入jupyter笔记本时.给我看这些

When I input jupyter notebook. It show me these

Last login: Wed Apr 24 23:06:17
miracleleon@MiracledeMBP  ~  jupyter notebook
Traceback (most recent call last):
File "/usr/local/bin/jupyter-notebook", line 6, in 
from notebook.notebookapp import main
File "/usr/local/lib/python3.7/site-packages/notebook/init.py", line 25, in 
from .nbextensions import install_nbextension
File "/usr/local/lib/python3.7/site-packages/notebook/nbextensions.py", line 610, in 
from .extensions import (
File "/usr/local/lib/python3.7/site-packages/notebook/extensions.py", line 8, in 
from tornado.log import LogFormatter
File "/usr/local/lib/python3.7/site-packages/tornado/log.py", line 34, in 
from tornado.escape import _unicode
File "/usr/local/lib/python3.7/site-packages/tornado/escape.py", line 27, in 
from tornado.util import unicode_type
File "/usr/local/lib/python3.7/site-packages/tornado/util.py", line 18, in 
import typing
File "/usr/local/lib/python3.7/site-packages/typing.py", line 1356, in 
class Callable(extra=collections_abc.Callable, metaclass=CallableMeta):
File "/usr/local/lib/python3.7/site-packages/typing.py", line 1004, in new
self._abc_registry = extra._abc_registry
AttributeError: type object 'Callable' has no attribute '_abc_registry'

推荐答案

尝试卸载键入内容:

pip uninstall typing

或将python降级到3.6.键入3.7似乎有问题

or downgrading python to 3.6. There seems to be a problem with typing in 3.7

如果之后您得到:

AttributeError:模块'typing'没有属性'_ClassVar'

AttributeError: module 'typing' has no attribute '_ClassVar'

尝试pip uninstall dataclasses.

有关更多信息，请参阅: https://github.com/RTIInternational/gobbli/issues/10

For more info refer to: https://github.com/RTIInternational/gobbli/issues/10

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