1 files changed, 33 insertions, 14 deletions
diff --git a/Mac/BuildScript/resources/ReadMe.txt b/Mac/BuildScript/resources/ReadMe.txt
index 9ac52d0..e5c49f0 100644
--- a/Mac/BuildScript/resources/ReadMe.txt
+++ b/Mac/BuildScript/resources/ReadMe.txt
@@ -2,10 +2,12 @@ This package will install Python $FULL_VERSION for Mac OS X
 $MACOSX_DEPLOYMENT_TARGET for the following architecture(s):
 $ARCHITECTURES.
 
-Installation requires approximately $INSTALL_SIZE MB of disk space,
-ignore the message that it will take zero bytes.
+               **** IMPORTANT ****
+
+Installing on OS X 10.8 (Mountain Lion) or later systems
+========================================================
 
-If you are attempting to install on an OS X 10.8 system, you may
+If you are attempting to install on an OS X 10.8+ system, you may
 see a message that Python can't be installed because it is from an
 unidentified developer.  This is because this Python installer
 package is not yet compatible with the Gatekeeper security feature
@@ -15,22 +17,36 @@ instead of double-clicking, control-click or right click the "Python"
 installer package icon.  Then select "Open using ... Installer" from
 the contextual menu that appears.
 
+       **** IMPORTANT changes if you use IDLE and Tkinter ****
+
+Installing a third-party version of Tcl/Tk is no longer required
+================================================================
+
+As of Python 3.3.3, the 10.6+ 64-bit installer now
+comes with its own private copy of Tcl and Tk 8.5 libraries.  For
+this version of Python, it is no longer necessary to install
+a third-party version of Tcl/Tk 8.5, such as those from ActiveState,
+to work around the problematic versions of Tcl/Tk 8.5 shipped by
+Apple in OS X 10.6 and later.  (This does not change the requirements
+for older versions of Python installed from python.org.)  By default,
+this version of Python will always use its own private version,
+regardless of whether a third-party Tcl/Tk is installed.
+The 10.5+ 32-bit-only installer continues to use Tcl/Tk 8.4,
+either a third-party or system-supplied version.
+
+Visit http://www.python.org/download/mac/tcltk/
+for current information about supported and recommended versions of
+Tcl/Tk for this version of Python and of Mac OS X.
+
+Using this version of Python on OS X
+====================================
+
 Python consists of the Python programming language interpreter, plus
 a set of programs to allow easy access to it for Mac users including
 an integrated development environment, IDLE, plus a set of pre-built
 extension modules that open up specific Macintosh technologies to
 Python programs.
 
-                    **** IMPORTANT ****
-                    
-To use IDLE or other programs that use the tkinter graphical user
-interface toolkit, you may need to install a third-party version of
-the Tcl/Tk frameworks.  Visit http://www.python.org/download/mac/tcltk/
-for current information about supported and recommended versions of
-Tcl/Tk for this version of Python and of Mac OS X.
-
-                    *******************
-
 The installer puts applications, an "Update Shell Profile" command,
 and a link to the optionally installed Python Documentation into the
 "Python $VERSION" subfolder of the system Applications folder,
@@ -41,12 +57,15 @@ well. Double-click on the "Update Shell Profile" command to add the
 "bin" directory inside the framework to your shell's search path.
 
 You must install onto your current boot disk, even though the
-installer does not enforce this, otherwise things will not work.
+installer may not enforce this, otherwise things will not work.
 
 You can verify the integrity of the disk image file containing the
 installer package and this ReadMe file by comparing its md5 checksum
 and size with the values published on the release page linked at
 http://www.python.org/download/
 
+Installation requires approximately $INSTALL_SIZE MB of disk space,
+ignore the message that it will take zero bytes.
+
 More information on Python in general can be found at
 http://www.python.org.