默认情况下，此问题已在Python 3.7+上修复
这绝对是一个棘手的技巧：答案是在使用
subprocess模块之前迭代已打开的文件描述符。
def _hack_windows_subprocess(): """HACK: python 2.7 file descriptors. This magic hack fixes https://bugs.python.org/issue19575 by adding HANDLE_FLAG_INHERIT to all already opened file descriptors. """ # See https://github.com/secdev/scapy/issues/1136 import stat from ctypes import windll, wintypes from msvcrt import get_osfhandle HANDLE_FLAG_INHERIT = 0x00000001 for fd in range(100): try: s = os.fstat(fd) except: continue if stat.S_ISREG(s.st_mode): handle = wintypes.HANDLE(get_osfhandle(fd)) mask = wintypes.DWORd(HANDLE_FLAG_INHERIT) flags = wintypes.DWORd(0) windll.kernel32.SetHandleInformation(handle, mask, flags)
这是一个没有它就会崩溃的示例：
import os, subprocessf = open("a.txt", "w")subprocess.Popen(["cmd"], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)f.close()os.remove(f.name)追溯（最近一次通话）：
文件“ stdin”，第1行，在模块中
WindowsError：[错误32]自动处理程序，自动处理程序：’a.txt’
现在修复：
import os, subprocessf = open("a.txt", "w")_hack_windows_subprocess()subprocess.Popen(["cmd"], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)f.close()os.remove(f.name)作品。
希望我有所帮助
