在 python 中加载 DLL 时出错，不是有效的 win32 应用程序 [英] Error loading DLL in python, not a valid win32 application

问题描述

我正在尝试在 python 中加载一个 DLL 来调用函数.

I am trying to load a DLL in python to call functions.

import ctypes
from ctypes import *

dsusb = ctypes.WinDLL('c:python27dsusb.dll')

我的堆栈中出现以下错误.

I get the following error in my stack.

C:Python27>python test.py
Traceback (most recent call last):
  File "test.py", line 4, in <module>
    dsusb = ctypes.WinDLL('c:python27dsusb.dll')
  File "C:Python27libctypes\__init__.py", line 365, in __init__
    self._handle = _dlopen(self._name, mode)
WindowsError: [Error 193] %1 is not a valid Win32 application

我也用相同的代码尝试了 cdll.

I also tried cdll with the same code.

我查了一下错误，windows 说这是因为路径包含空格......我认为这不是问题......

I looked up the error and windows says it's due to a path containing spaces... which I do not think is really the problem...

我加载这个 DLL 是错误还是 dll 中可能有错误?

Am I loading this DLL wrong or is there something that might be wrong in the dll?

推荐答案

正如评论所暗示的，这可能是一个架构问题.

As the comments suggest, it could be an architecture problem.

如果您在 64 位 Python 中使用 32 位 DLL，反之亦然，那么您可能会遇到错误.

If you're using a 32bit DLL with 64bit Python, or vice-versa, then you'll probably get errors.

由于我之前遇到过您的错误，我建议您尝试使用 32 位 Python 加载您的 DLL.

Since I've had your error before, I recommend trying to load your DLL with 32bit Python.

测试 *.dll 文件是 32 位还是 64 位的一种方法是使用 dumpbin.exe，例如

One way to test if a *.dll-file is 32bit or 64bit, is to use dumpbin.exe, e.g.

dumpbin /headers dsusb.dll

...

FILE HEADER VALUES
             14C machine (x86)
...

machine (x86) 表示 32 位，machine (x64) 表示 64 位.

machine (x86) means 32bit, machine (x64) means 64bit.

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