class_docstr: This is the main class interface for Pexpect. Use this class to start
  and control child applications. 
class_docstr_tok: ["This","is","the","main","class","interface","for","Pexpect",".","Use","this","class","to","start","and","control","child","applications","."]
docstr: Spawn a pty and return an instance of PtyProcess.
docstr_tok: ["Spawn","a","pty","and","return","an","instance","of","PtyProcess","."]
code: def _spawnpty(self, args, **kwargs):
      """Spawn a pty and return an instance of PtyProcess."""
      return ptyprocess.PtyProcess.spawn(args, **kwargs)
  
imports: import os
  import sys
  import time
  import pty
  import tty
  import errno
  import signal
  from contextlib import contextmanager
  import ptyprocess
  from ptyprocess.ptyprocess import use_native_pty_fork
  from .exceptions import ExceptionPexpect, EOF, TIMEOUT
  from .spawnbase import SpawnBase
  from .utils import which, split_command_line, select_ignore_interrupts, poll_ignore_interrupts
label_desc: Use image node_id 4 for calling the spawn obj's underlying member method code with example usage: obj._spawnpty(args) and returns: ptyprocess