text: import multiprocessing as mp
  import subprocess as sp
  import sys
  import os
  import io
  import shlex
  import msvcrt
  
  fi=open('test.txt','rb')
  fo=sys.stderr
  fe=sys.stderr
  fo2=open('usunmnie.txt','wb')
  fd = fo2.fileno()
  fh = msvcrt.get_osfhandle(fd)
  print(fd,fh)
  
  #args=['python','upper.py',str(fd)]
  args=['python','upper2.py',str(fh)]
  p=sp.Popen(args,stdin=fi,stdout=fo,stderr=fe,close_fds=False)
  p.wait()
  