diff options
Diffstat (limited to 'Doc/library')
| -rw-r--r-- | Doc/library/subprocess.rst | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Doc/library/subprocess.rst b/Doc/library/subprocess.rst index 45fcfc7..f35a820 100644 --- a/Doc/library/subprocess.rst +++ b/Doc/library/subprocess.rst @@ -192,7 +192,10 @@ underlying :class:`Popen` interface can be used directly. .. attribute:: output Output of the child process if it was captured by :func:`run` or - :func:`check_output`. Otherwise, ``None``. + :func:`check_output`. Otherwise, ``None``. This is always + :class:`bytes` when any output was captured regardless of the + ``text=True`` setting. It may remain ``None`` instead of ``b''`` + when no output was observed. .. attribute:: stdout @@ -201,7 +204,9 @@ underlying :class:`Popen` interface can be used directly. .. attribute:: stderr Stderr output of the child process if it was captured by :func:`run`. - Otherwise, ``None``. + Otherwise, ``None``. This is always :class:`bytes` when stderr output + was captured regardless of the ``text=True`` setting. It may remain + ``None`` instead of ``b''`` when no stderr output was observed. .. versionadded:: 3.3 |