1  from typing import Any, Iterable, List, Optional, TextIO, Tuple, TypeVar, Union
   2  
   3  _T = TypeVar("_T")
   4  
   5  class Popen3:
   6      sts: int
   7      cmd: Iterable[Any]
   8      pid: int
   9      tochild: TextIO
  10      fromchild: TextIO
  11      childerr: Optional[TextIO]
  12      def __init__(self, cmd: Iterable[Any] = ..., capturestderr: bool = ..., bufsize: int = ...) -> None: ...
  13      def __del__(self) -> None: ...
  14      def poll(self, _deadstate: _T = ...) -> Union[int, _T]: ...
  15      def wait(self) -> int: ...
  16  
  17  class Popen4(Popen3):
  18      childerr: None
  19      cmd: Iterable[Any]
  20      pid: int
  21      tochild: TextIO
  22      fromchild: TextIO
  23      def __init__(self, cmd: Iterable[Any] = ..., bufsize: int = ...) -> None: ...
  24  
  25  def popen2(cmd: Iterable[Any] = ..., bufsize: int = ..., mode: str = ...) -> Tuple[TextIO, TextIO]: ...
  26  def popen3(cmd: Iterable[Any] = ..., bufsize: int = ..., mode: str = ...) -> Tuple[TextIO, TextIO, TextIO]: ...
  27  def popen4(cmd: Iterable[Any] = ..., bufsize: int = ..., mode: str = ...) -> Tuple[TextIO, TextIO]: ...
  28