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-rw-r--r--Doc/library/argparse.rst6
1 files changed, 4 insertions, 2 deletions
diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst
index 5d269cc..b5a2b79 100644
--- a/Doc/library/argparse.rst
+++ b/Doc/library/argparse.rst
@@ -846,8 +846,10 @@ how the command-line arguments should be handled. The supplied actions are:
Namespace(foo=True, bar=False, baz=True)
* ``'append'`` - This stores a list, and appends each argument value to the
- list. This is useful to allow an option to be specified multiple times.
- Example usage::
+ list. It is useful to allow an option to be specified multiple times.
+ If the default value is non-empty, the default elements will be present
+ in the parsed value for the option, with any values from the
+ command line appended after those default values. Example usage::
>>> parser = argparse.ArgumentParser()
>>> parser.add_argument('--foo', action='append')