diff -r a26df2d03989 Lib/argparse.py
--- a/Lib/argparse.py	Mon Apr 22 22:54:16 2013 +0300
+++ b/Lib/argparse.py	Sun Apr 28 23:54:37 2013 -0700
@@ -1856,8 +1856,13 @@
 action = optionals_map[option_string]
 explicit_arg = new_explicit_arg
 else:
- msg = _('ignored explicit argument %r')
- raise ArgumentError(action, msg % explicit_arg)
+ if False:
+ msg = _('ignored explicit argument %r')
+ raise ArgumentError(action, msg % explicit_arg)
+ else:
+ # alt handling of unknown explicit_arg
+ extras.append(option_string)
+ explicit_arg = new_explicit_arg
 
 # if the action expect exactly one argument, we've
 # successfully matched the option; exit the loop
</div><div class="naked_ctrl">
<form action="/index.cgi/contrast" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://bugs.python.org/file30056/dashku.patch">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://bugs.python.org/file30056/dashku.patch" size="22" /></label> <label>モード: <select name="naked_post_mode">
<option value="default">デフォルト</option>
<option value="speech">音声ブラウザ</option>
<option value="ruby">ルビ付き</option>
<option value="contrast" selected="selected">配色反転</option>
<option value="larger-text">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>