From da2a4da94bdb285c7b568e4fd0e546577e446f33 Mon Sep 17 00:00:00 2001
From: "steven.bethard" <devnull@localhost>
Date: Mon, 4 May 2009 05:20:50 +0000
Subject: Make append* actions copy their default value. Bump version numbers,
 and clean up description text in setup.py. Ignore some generated and local
 files.

---
 argparse.py | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

(limited to 'argparse.py')

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):
-- 
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