Where is Python installed by default? (As in: If you don't customize at all, do you get Python?)

• Gentoo Linux

• Red Hat Linux 9, Fedora Core (all versions)

• Slackware Linux

• Ubuntu Linux

• Mac OS X

• http://www.yellowtab.com yellowTAB ZETA

• PLD Linux

• Nexradix™ (all versions)

Where is Python not installed by default?

• Windows (all)

• SuSE 9.0, SuSE 9.1

• Sun Java Desktop

Actually, some vendors do install Python on Windows machines, but that's vendor-specific rather than platform-specific. More information on such installations can be found in the "Why is Python Installed on my Computer?" FAQ.

For Linux, you can use Freeze to make executables. For Windows, you can use Py2Exe. The Mac OS equivalent is py2app.