Index: Lib/tkinter/__init__.py
===================================================================
--- Lib/tkinter/__init__.py	(revision 63452)
+++ Lib/tkinter/__init__.py	(working copy)
@@ -1052,6 +1052,8 @@
                 if k[-1] == '_': k = k[:-1]
                 if callable(v):
                     v = self._register(v)
+                elif hasattr(v, '__len__') and not isinstance(v, basestring):
+                    v = ' '.join(map(str, v))
                 res = res + ('-'+k, v)
         return res
     def nametowidget(self, name):
@@ -1091,7 +1093,6 @@
             if self._tclCommands is None:
                 self._tclCommands = []
             self._tclCommands.append(name)
-        #print '+ Tkinter created command', name
         return name
     register = _register
     def _root(self):
@@ -1742,12 +1743,13 @@
     def pack_configure(self, cnf={}, **kw):
         """Pack a widget in the parent widget. Use as options:
         after=widget - pack it after you have packed widget
-        anchor=NSEW (or subset) - position widget according to
-                                  given direction
-                before=widget - pack it before you will pack widget
+        anchor=NSEW (or subset) - position widget according to given
+                                  direction
+        before=widget - pack it before you will pack widget
         expand=bool - expand widget if parent size grows
         fill=NONE or X or Y or BOTH - fill widget if widget grows
         in=master - use master to contain this widget
+        in_=master - see 'in' option description.
         ipadx=amount - add internal padding in x direction
         ipady=amount - add internal padding in y direction
         padx=amount - add padding in x direction
@@ -1786,28 +1788,26 @@
     def place_configure(self, cnf={}, **kw):
         """Place a widget in the parent widget. Use as options:
         in=master - master relative to which the widget is placed.
+        in_=master - see 'in' option description.
         x=amount - locate anchor of this widget at position x of master
         y=amount - locate anchor of this widget at position y of master
         relx=amount - locate anchor of this widget between 0.0 and 1.0
                       relative to width of master (1.0 is right edge)
-            rely=amount - locate anchor of this widget between 0.0 and 1.0
+        rely=amount - locate anchor of this widget between 0.0 and 1.0
                       relative to height of master (1.0 is bottom edge)
-            anchor=NSEW (or subset) - position anchor according to given direction
+        anchor=NSEW (or subset) - position anchor according to given
+                                  direction
         width=amount - width of this widget in pixel
         height=amount - height of this widget in pixel
         relwidth=amount - width of this widget between 0.0 and 1.0
                           relative to width of master (1.0 is the same width
-                  as the master)
-            relheight=amount - height of this widget between 0.0 and 1.0
+                          as the master)
+        relheight=amount - height of this widget between 0.0 and 1.0
                            relative to height of master (1.0 is the same
-                   height as the master)
-            bordermode="inside" or "outside" - whether to take border width of master widget
-                                               into account
-            """
-        for k in ['in_']:
-            if kw.has_key(k):
-                kw[k[:-1]] = kw[k]
-                del kw[k]
+                           height as the master)
+        bordermode="inside" or "outside" - whether to take border width of
+                                           master widget into account
+        """
         self.tk.call(
               ('place', 'configure', self._w)
               + self._options(cnf, kw))
@@ -1842,6 +1842,7 @@
         column=number - use cell identified with given column (starting with 0)
         columnspan=number - this widget will span several columns
         in=master - use master to contain this widget
+        in_=master - see 'in' option description.
         ipadx=amount - add internal padding in x direction
         ipady=amount - add internal padding in y direction
         padx=amount - add padding in x direction