Windows上的奇怪Python错误,在调试器下工作

奇怪的是,在Python调试器下一切正常.更奇怪的是,当我删除some_parameter或GetFileInformationByHandle时,错误消失了.这告诉我,也许是一些内存错误,但我真的不知所措.

有些代码可能看起来没必要,但我不能在不引起异常的情况下缩小代码.

我已经在Windows 7上的Python 3.4.1 x64,pywin32 218.5和219上测试了这个.

import os
import win32file
import pywintypes
from ctypes import *
from ctypes.wintypes import *


class BY_HANDLE_FILE_INFORMATION(Structure):
    _fields_ = [
        ('dwFileAttributes',DWORD),('ftCreationTime',FILETIME),('ftLastAccessTime',('ftLastWriteTime',('dwVolumeSerialNumber',('nFileSizeHigh',('nFileSizeLow',('nNumberOfLinks',('nFileIndexHigh',('nFileIndexLow',]


def GetFileInformationByHandle2(handle):
    GetFileInformationByHandle(handle)


def GetFileInformationByHandle(handle):
    bhfi = BY_HANDLE_FILE_INFORMATION()
    res = windll.kernelbase.GetFileInformationByHandle(handle.handle,byref(bhfi))
    if res == 0:
        errno = GetLastError()
        raise pywintypes.error(errno,'GetFileInformationByHandle',FormatError(errno))


def open_file(path,param_1=False):
    return win32file.CreateFile(path,win32file.GENERIC_READ,None,win32file.OPEN_EXISTING,None)


def main():
    path = 'test.bin'
    open(path,'wb').close()
    h_file = open_file(path)
    GetFileInformationByHandle(h_file)
    win32file.CloseHandle(h_file)
    h_file = open_file(path)
    GetFileInformationByHandle2(h_file)
    win32file.CloseHandle(h_file)
    os.remove(path)


if __name__ == '__main__':
    main()