diff options
Diffstat (limited to 'Doc/library/functions.rst')
| -rw-r--r-- | Doc/library/functions.rst | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst index 399f1ff..67b77f7 100644 --- a/Doc/library/functions.rst +++ b/Doc/library/functions.rst @@ -979,6 +979,8 @@ are always available. They are listed here in alphabetical order. :mod:`os.open` as *opener* results in functionality similar to passing ``None``). + The newly created file is :ref:`non-inheritable <fd_inheritance>`. + The following example uses the :ref:`dir_fd <dir_fd>` parameter of the :func:`os.open` function to open a file relative to a given directory:: @@ -992,10 +994,6 @@ are always available. They are listed here in alphabetical order. ... >>> os.close(dir_fd) # don't leak a file descriptor - .. versionchanged:: 3.3 - The *opener* parameter was added. - The ``'x'`` mode was added. - The type of :term:`file object` returned by the :func:`open` function depends on the mode. When :func:`open` is used to open a file in a text mode (``'w'``, ``'r'``, ``'wt'``, ``'rt'``, etc.), it returns a subclass of @@ -1022,10 +1020,15 @@ are always available. They are listed here in alphabetical order. and :mod:`shutil`. .. versionchanged:: 3.3 + The *opener* parameter was added. + The ``'x'`` mode was added. :exc:`IOError` used to be raised, it is now an alias of :exc:`OSError`. :exc:`FileExistsError` is now raised if the file opened in exclusive creation mode (``'x'``) already exists. + .. versionchanged:: 3.4 + The file is now non-inheritable. + .. XXX works for bytes too, but should it? .. function:: ord(c) |