Namespace(foo='1')
* ``'store_const'`` - This stores the value specified by the const_ keyword
- argument. (Note that the const_ keyword argument defaults to the rather
- unhelpful ``None``.) The ``'store_const'`` action is most commonly used with
+ argument. The ``'store_const'`` action is most commonly used with
optional arguments that specify some sort of flag. For example::
>>> parser = argparse.ArgumentParser()
command-line argument following it, the value of ``const`` will be assumed instead.
See the nargs_ description for examples.
-The ``const`` keyword argument defaults to ``None``.
+With the ``'store_const'`` and ``'append_const'`` actions, the ``const``
+keyword argument must be given. For other actions, is defaults to ``None``.
default