Make append* actions copy their default value.

Bump version numbers, and clean up description text in setup.py.
Ignore some generated and local files.

1 files changed, 8 insertions, 3 deletions

diff --git a/argparse.py b/argparse.py
index bc640a2..8544dd7 100644
--- a/argparse.py
+++ b/argparse.py
@@ -72,8 +72,9 @@ considered public as object names -- the API of the formatter objects is
 still considered an implementation detail.)

 """

 

-__version__ = '0.9.1'

+__version__ = '0.9.2'

 

+import copy as _copy

 import os as _os

 import re as _re

 import sys as _sys

@@ -833,7 +834,9 @@ class _AppendAction(Action):
             metavar=metavar)

 

     def __call__(self, parser, namespace, values, option_string=None):

-        _ensure_value(namespace, self.dest, []).append(values)

+        items = _copy.copy(_ensure_value(namespace, self.dest, []))

+        items.append(values)

+        setattr(namespace, self.dest, items)

 

 

 class _AppendConstAction(Action):

@@ -857,7 +860,9 @@ class _AppendConstAction(Action):
             metavar=metavar)

 

     def __call__(self, parser, namespace, values, option_string=None):

-        _ensure_value(namespace, self.dest, []).append(self.const)

+        items = _copy.copy(_ensure_value(namespace, self.dest, []))

+        items.append(self.const)

+        setattr(namespace, self.dest, items)

 

 

 class _CountAction(Action):