fix review idea

Signed-off-by: Manjusaka <[email protected]>

Author: Zheaoli

Doc/library/os.rst

@@ -4592,6 +4592,10 @@ written in Python, such as a mail server's external command delivery program.
    master end of the pseudo-terminal.  For a more portable approach, use the
    :mod:`pty` module.  If an error occurs :exc:`OSError` is raised.
 
+   The returned file descriptor *fd* is :ref:`non-inheritable <fd_inheritance>`.
+   This means it will not be passed to child processes created by subsequent
+   :func:`fork` or :func:`exec*` calls.
+
    .. audit-event:: os.forkpty "" os.forkpty
 
    .. warning::
@@ -4608,6 +4612,9 @@ written in Python, such as a mail server's external command delivery program.
       threads, this now raises a :exc:`DeprecationWarning`. See the
       longer explanation on :func:`os.fork`.
 
+   .. versionchanged:: 3.15
+      The returned file descriptor is now made non-inheritable.
+
    .. availability:: Unix, not WASI, not Android, not iOS.
 
 

Doc/library/pty.rst

@@ -33,9 +33,16 @@ The :mod:`pty` module defines the following functions:
    file descriptor connected to the child's controlling terminal (and also to the
    child's standard input and output).
 
+   The returned file descriptor *fd* is :ref:`non-inheritable <fd_inheritance>`.
+   This means it will not be passed to child processes created by subsequent
+   :func:`os.fork` or :func:`os.exec*` calls.
+
    .. warning:: On macOS the use of this function is unsafe when mixed with using
       higher-level system APIs, and that includes using :mod:`urllib.request`.
 
+   .. versionchanged:: 3.15
+      The returned file descriptor is now made non-inheritable.
+
 
 .. function:: openpty()
 

Lib/test/test_pty.py

@@ -12,7 +12,6 @@
     raise unittest.SkipTest("pty is not available on this platform")
 
 import errno
-import fcntl
 import os
 import pty
 import tty