Re: [Visualpython-users] Python 3.0 released

[Bruce S. <Bru...@nc...>]

The first release of Visual 5 will be for Python 2.5, though of course 
we will try to track upgrades in Python.

I tried building Visual 5 for Python 2.6, which is an attractive target 
because it provides support for identifying possible incompatibilities 
with Py3K. Unfortunately there are various problems. Here is what I 
posted on the VPython wiki in response to a question about 2.6:

The Boost libraries, which enhance C++, have to be built for a specific 
version of Python, and since there aren't yet available these binaries 
for 2.6, I built them from source. Similarly for numpy. Turns out that 
something has changed in these components, because there's now a type 
mismatch between numpy integers and Python integers (this is a 
simplified description). Moreover, for the new Visual about to be 
released, there's a problem with a native-mode version for the Mac 
because the Mac Python 2.6 has an IDLE that won't run!

Summary: There are various problems in the Python 2.6 world. But we'll 
be tracking them and looking for solutions. We would prefer to release 
the new Visual for Python 2.6, because Python 2.6 builds a bridge 
between Python 2.5 and the coming Python 3.0, a version of Python that 
will actually break some existing programs. Python 2.6 offers tools to 
check on possible incompatibilities.

Bruce Sherwood

Roberto Aguirre Maturana wrote:
> Is Visual 5 going to be compatible with Py3K?
>