[Tkinter-discuss] how make active python 3 use active tcl on mac os?

[Sridhar Ratnakumar]

On 2010-11-26, at 7:24 PM, Ned Deily wrote:

>> 
>> I certainly don't see the -32/-64 binaries in ActivePython 3.1.2.4 
>> (based on Python 3.1.2). So if 3.1.2 is supposed to generate these - 
>> then this is an ActivePython bug that needs to be fixed.
> 
> As I noted earlier, 32-bit/64-bit 3.1 (and 2.6, for that matter) builds 
> do not support architecture selection via the arch command on 10.6, 
> which will always prefer to launch 64-bit if possible.  A feature was 
> added to 2.7 and 3.2 to support this.  For 2.6 and 3.1 systems, the 
> standard ./configure options --with-universal-archs="3-way", "intel" or 
> "all" create the separate 32- and -64-bit executables.  Running on 10.6 
> you can see the problem with the ActivePython 3.1.2.4 - it always runs 
> in 64-bit mode:

Ok, thanks for this background information. Strangely enough, when I now build ActivePython 3.1.3.5 (to be released by end of this week), I see the -32/-64/-all binaries. It was only missing from the 3.1.2.4 build (was it because of having 3.1.2.3 - ppc+i386 - in /Lib/Frmwrk?). Using the same build:

$ python3.1-64 -c 'import sys;print(sys.maxsize)'
9223372036854775807
$ python3.1-32 -c 'import sys;print(sys.maxsize)'
2147483647

Further I will also update the FAQ <http://goo.gl/zGD3T>, which is incorrectly suggesting `arch` for 2.6 and 3.1 too.

-srid