pywinauto TypeError:_argtypes_uu中的项2通过值传递union，这是不受支持的

Question

我用的是pywinauto

Python 3.7.6 pywinauto 0.6.8

我没有导入pywinauto模块的问题，但有以下问题：

代码：

from pywinauto.application import Application
app = Application(backend="uia").start("thinkorswim.exe")

结果:

Traceback (most recent call last):
  File "C:\Users\willi\AppData\Local\Programs\Python\Python37\lib\ctypes\__init__.py", line 121, in WINFUNCTYPE
    return _win_functype_cache[(restype, argtypes, flags)]
KeyError: (<class 'ctypes.HRESULT'>, (<class 'ctypes.c_long'>, <class 'comtypes.automation.tagVARIANT'>, <class 'comtypes.LP_POINTER(IUIAutomationCondition)'>), 0)

During handling of the above exception, another exception occurred:

    prototype = WINFUNCTYPE(restype, *argtypes)
  File "C:\Users\willi\AppData\Local\Programs\Python\Python37\lib\ctypes\__init__.py", line 123, in WINFUNCTYPE
    class WinFunctionType(_CFuncPtr):
TypeError: item 2 in _argtypes_ passes a union by value, which is unsupported.

有朋友能帮忙吗

Answer 1

这是在更高版本（3.7.7+或3.8.2+）中修复的已知Python错误。请看我的答案：Getting error while running a script which uses pywinauto

请注意，您可能需要安装较新的Python