Daniel Mahler writes:

If I am using a source zope distribution and upgrade Python (2.1.1 -> 2.1.2 in this case) do I need to rerun the zope build script? You should upgrade Zope, too (to at least Zope 2.4.4 or Zope 2.5.0). When you upgrade Zope, you should rerung the build script.

When you upgrade only Python, it may not be necessary. But, it takes longer to ask whether or not you need than just do it... Dieter