[Distutils] wheel questions

[Thomas Heller]

1. question: Can wheels support a postinstall script?

Background: I'm in the process of setting up a build script for that
part of our company's software that is ported to Python 3.4.

I am using either wheels built by 'pip wheel' and cache them locally,
or, if this doesn't work (numpy and pywin32 for example), convert
bdist_wininst installers to wheels with 'wheel convert xxx.exe'.

Works fine for numpy and some other stuff, but not for pywin32. pywin32
contains a postinstall script that installs some dlls into the right
locations and also does other stuff.  Can a wheel run an included 
postinstall (and preremove) script?


2. question:  I am building wheels for py2exe.
If the wheel is built with python 3.3, the resulting wheel filename is
py2exe-0.9.0.3-py33-none-any.whl.
If the wheel is built with python 3.4, the filename is
py2exe-0.9.0.3-py34-none-any.whl.

Both are (kind-of) pure python distributions.  'pip install' can
install the former both for Python 3.3 and Python 3.4, the latter
only for Python 3.4.

The only reason can be the filename.  Does the -py34- part mean that
*at least* Python 3.4 is required, and does -py33- mean that *at least*
Python 3.3 is required?

What would -cp33- or -cp34- mean?

Sorry about these questions, but I'm lost what these filenames really 
mean (and how they are created).

Thanks,
Thomas