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author | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2021-07-12 15:43:16 (GMT) |
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committer | GitHub <noreply@github.com> | 2021-07-12 15:43:16 (GMT) |
commit | 721d4796be60e6a0a11dee8318794f78928648c1 (patch) | |
tree | 45c063ad640e15374abe9e3b1f1fdfe910b38600 | |
parent | 443db64f496d3988d20cfda2c3c2ceb6702df36f (diff) | |
download | cpython-721d4796be60e6a0a11dee8318794f78928648c1.zip cpython-721d4796be60e6a0a11dee8318794f78928648c1.tar.gz cpython-721d4796be60e6a0a11dee8318794f78928648c1.tar.bz2 |
bpo-42194: Add "New in version: 3.9" to argparse.BooleanOptionalAction (GH-23026) (#27097)
(cherry picked from commit da2e673c53974641a0e13941950e7976bbda64d5)
Co-authored-by: David Sanders <shang.xiao.sanders@gmail.com>
-rw-r--r-- | Doc/library/argparse.rst | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst index b2eb9ef..a1b4bd0 100644 --- a/Doc/library/argparse.rst +++ b/Doc/library/argparse.rst @@ -853,6 +853,8 @@ is available in ``argparse`` and adds support for boolean actions such as >>> parser.parse_args(['--no-foo']) Namespace(foo=False) +.. versionadded:: 3.9 + The recommended way to create a custom action is to extend :class:`Action`, overriding the ``__call__`` method and optionally the ``__init__`` and ``format_usage`` methods. |