python win32api在使用pyinstaller后失败

Question

在使用pyinstaller形成可执行文件后，出现了一个问题。 这段代码使用函数win32api.GetShortPathName检查文件是否存在于文件名较长的路径上，单独运行python文件没有问题。使用pyinstaller后，程序在相同情况下失败

Traceback (most recent call last):
  File "pycopy.py", line 32, in cp
pywintypes.error: (3, 'GetShortPathNameW', 'Das System kann den angegebenen Pfad nicht finden.')

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\program files\python37\lib\threading.py", line 926, in _bootstrap_inner
    self.run()
  File "c:\program files\python37\lib\threading.py", line 870, in run
    self._target(*self._args, **self._kwargs)
  File "pycopy.py", line 131, in download
  File "pycopy.py", line 83, in copyit
  File "pycopy.py", line 36, in cp
pywintypes.error: (3, 'GetShortPathNameW', 'Das System kann den angegebenen Pfad nicht finden.')

错误的英文意思是：系统找不到路径

Answer 1

您需要Enable Long Paths in Windows 10, Version 1607, and Later，将longPathAware元素添加到应用程序清单中：

<application xmlns="urn:schemas-microsoft-com:asm.v3">
    <windowsSettings xmlns:ws2="http://schemas.microsoft.com/SMI/2016/WindowsSettings">
        <ws2:longPathAware>true</ws2:longPathAware>
    </windowsSettings>
</application>

或者添加“\\?\”前缀以指定winapi的Unicode版本中的扩展长度路径，例如“\\?\D:\very long path”