无法从“键入扩展名”导入名称“TypeGuard”

Question

我是Python新手，在swmmtoolbox包中发现以下错误。我非常感谢你的评论。谢谢

回溯（最近一次呼叫最后一次）：

File "C:\Users\Hydraulic Group\anaconda3\lib\site-packages\typic\compat.py", line 16, in <module>
    from typing import Final, TypedDict, Literal, Protocol, **TypeGuard**, get_origin, get_args  # type: ignore

ImportError: cannot import name 'TypeGuard' from 'typing' (C:\Users\Hydraulic Group\anaconda3\lib\typing.py)

在处理上述异常期间，发生了另一个异常：回溯（最近一次调用last）：

File "E:\VARS_Research\ostrich_swmm_master\ostrich_swmm\__main__.py", line 11, in <module>
    import extract

  File "E:\VARS_Research\ostrich_swmm_master\ostrich_swmm\extract.py", line 8, in <module>
    import swmmtoolbox.swmmtoolbox as swmmtoolbox

  File "C:\Users\Hydraulic Group\anaconda3\lib\site-packages\swmmtoolbox\swmmtoolbox.py", line 19, in <module>
    from tstoolbox import tsutils

  File "C:\Users\Hydraulic Group\anaconda3\lib\site-packages\tstoolbox\tsutils.py", line 24, in <module>
    import typic

  File "C:\Users\Hydraulic Group\anaconda3\lib\site-packages\typic\__init__.py", line 4, in <module>
    from . import types, constraints

  File "C:\Users\Hydraulic Group\anaconda3\lib\site-packages\typic\types\__init__.py", line 6, in <module>
    from .dsn import *

  File "C:\Users\Hydraulic Group\anaconda3\lib\site-packages\typic\types\dsn.py", line 8, in <module>
    from typic.util import cached_property, slotted

  File "C:\Users\Hydraulic Group\anaconda3\lib\site-packages\typic\util.py", line 41, in <module>
    import typic.checks as checks

  File "C:\Users\Hydraulic Group\anaconda3\lib\site-packages\typic\checks.py", line 36, in <module>
    from typic.compat import (

  File "C:\Users\Hydraulic Group\anaconda3\lib\site-packages\typic\compat.py", line 18, in <module>
    from typing_extensions import Final, TypedDict, Literal, TypeGuard, Protocol, get_origin, get_args  # type: ignore

ImportError: cannot import name 'TypeGuard' from 'typing_extensions' (C:\Users\Hydraulic Group\anaconda3\lib\site-packages\typing_extensions.py)s about this issue.

Answer 1

同样的问题，升级打字扩展对我来说也很有效：

pip install typing-extensions  upgrade