WINEXE = (sys.platform == 'win32' and getattr(sys, 'frozen', False))

WINSERVICE = sys.executable.lower().endswith("pythonservice.exe")

def _close_handles(*handles):

for handle in handles:

_winapi.CloseHandle(handle)

#

# We define a Popen class similar to the one from subprocess, but

# whose constructor takes a process object as its argument.

def __init__(self, process_obj):

prep_data = spawn.get_preparation_data(process_obj._name)

# read end of pipe will be "stolen" by the child process

# read end of pipe will be duplicated by the child process

# -- see spawn_main() in spawn.py.

#

# bpo-33929: Previously, the read end of pipe was "stolen" by the child

# process, but it leaked a handle if the child process had been

# terminated before it could steal the handle from the parent process.

rhandle, whandle = _winapi.CreatePipe(None, 0)

wfd = msvcrt.open_osfhandle(whandle, 0)

cmd = spawn.get_command_line(parent_pid=os.getpid(),

self.returncode = None

self._handle = hp

self.sentinel = int(hp)

self.finalizer = util.Finalize(self, _winapi.CloseHandle, (self.sentinel,))

self.finalizer = util.Finalize(self, _close_handles,

(self.sentinel, int(rhandle)))

# send information to child

set_spawning_popen(self)