> In practice, I doubt that Python's going to meet such platforms in a hurry.

Hrm; looks like that's not a particularly safe assumption, especially with older compilers that might do a "typedef int _Bool".

From http://msdn.microsoft.com/en-us/library/tf4dy80a.aspx:

"That means that for Visual C++ 4.2, a call of sizeof(bool) yields 4, while in Visual C++ 5.0 and later, the same call yields 1."