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Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/library/argparse.rst | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst index cef197f..b77a38c 100644 --- a/Doc/library/argparse.rst +++ b/Doc/library/argparse.rst @@ -797,6 +797,15 @@ how the command-line arguments should be handled. The supplied actions are: >>> parser.parse_args(['--version']) PROG 2.0 +* ``'extend'`` - This stores a list, and extends each argument value to the + list. + Example usage:: + + >>> parser = argparse.ArgumentParser() + >>> parser.add_argument("--foo", action="extend", nargs="+", type=str) + >>> parser.parse_args(["--foo", "f1", "--foo", "f2", "f3", "f4"]) + Namespace(foo=['f1', 'f2', 'f3', 'f4']) + You may also specify an arbitrary action by passing an Action subclass or other object that implements the same interface. The recommended way to do this is to extend :class:`Action`, overriding the ``__call__`` method |