diff -r 034ebeb8be2d Lib/test/test_tcl.py
--- a/Lib/test/test_tcl.py	Thu Sep 04 21:00:52 2014 -0400
+++ b/Lib/test/test_tcl.py	Fri Sep 05 09:13:47 2014 +0300
@@ -418,7 +418,6 @@
 self.assertEqual(passValue(['a', ['b', 'c']]),
 ('a', ('b', 'c')) if self.wantobjects else 'a {b c}')
 
- @unittest.skipIf(sys.platform.startswith("aix"), 'Issue #21951: crashes on AIX')
 def test_user_command(self):
 result = None
 def testfunc(arg):
@@ -446,9 +445,11 @@
 check('string')
 check('string\xbd')
 check('string\u20ac')
+ check('')
 check(b'string', 'string')
 check(b'string\xe2\x82\xac', 'string\xe2\x82\xac')
 check(b'string\xbd', 'string\xbd')
+ check(b'', '')
 check('str\x00ing')
 check('str\x00ing\xbd')
 check('str\x00ing\u20ac')
diff -r 034ebeb8be2d Modules/_tkinter.c
--- a/Modules/_tkinter.c	Thu Sep 04 21:00:52 2014 -0400
+++ b/Modules/_tkinter.c	Fri Sep 05 09:13:47 2014 +0300
@@ -906,6 +906,8 @@
 Py_ssize_t size, i;
 
 size = PySequence_Fast_GET_SIZE(value);
+ if (size == 0)
+ return Tcl_NewListObj(0, NULL);
 if (!CHECK_SIZE(size, sizeof(Tcl_Obj *))) {
 PyErr_SetString(PyExc_OverflowError,
 PyTuple_Check(value) ? "tuple is too long" :
@@ -936,6 +938,8 @@
 
 inbuf = PyUnicode_DATA(value);
 size = PyUnicode_GET_LENGTH(value);
+ if (size == 0)
+ return Tcl_NewUnicodeObj((const void *)"", 0);
 if (!CHECK_SIZE(size, sizeof(Tcl_UniChar))) {
 PyErr_SetString(PyExc_OverflowError, "string is too long");
 return NULL;
</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/file36544/asobj_empty_sequence_2.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/file36544/asobj_empty_sequence_2.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>