get python bit version as in (32 or 64)

Philip Semanchuk philip at
Tue Oct 19 23:29:33 CEST 2010

On Oct 19, 2010, at 5:18 PM, Vincent Davis wrote:

> How do I get the bit version of the installed python. In my case, osx
> python2.7 binary installed. I know it runs 64 bt as I can see it in
> activity monitor. but how do I ask python?
> sys.version
> '2.7 (r27:82508, Jul  3 2010, 21:12:11) \n[GCC 4.0.1 (Apple Inc. build 5493)]'

I don't think there's an official way to do this. The canonical way appears to be to test the value of sys.maxint and see whether or not it is a 32- or 64-bit long.

See here for more details:


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