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

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

def _path_eq(p1, p2):

return p1 == p2 or os.path.normcase(p1) == os.path.normcase(p2)

WINENV = (hasattr(sys, '_base_executable') and

not _path_eq(sys.executable, sys._base_executable))

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.

pipe_handle=rhandle)

cmd = ' '.join('"%s"' % x for x in cmd)

python_exe = spawn.get_executable()

# bpo-35797: When running in a venv, we bypass the redirect

# executor and launch our base Python.

if WINENV and _path_eq(python_exe, sys.executable):

python_exe = sys._base_executable

env = os.environ.copy()

env["__PYVENV_LAUNCHER__"] = sys.executable

else:

env = None

with open(wfd, 'wb', closefd=True) as to_child:

# start process

try:

hp, ht, pid, tid = _winapi.CreateProcess(

spawn.get_executable(), cmd,

None, None, False, 0, None, None, None)

python_exe, cmd,

env, None, False, 0, None, None, None)

_winapi.CloseHandle(ht)

except:

_winapi.CloseHandle(rhandle)