Re: [Visualpython-users] VPython works on Python 3

[Peter B. <p.h...@bh...>]

Dear Bruce

Thank you for this excellent news, I am sure I am not the only member of the vpython community who recognises the enormous debt we owe you and your colleagues.

Regards

Peter

P H Borcherds  +44 [0] 121 475 3029
________________________________
From: Bruce Sherwood [bas...@nc...]
Sent: 21 August 2010 06:28
To: vpusers
Subject: [Visualpython-users] VPython works on Python 3

After quite a lot of changes to FontTools and a few changes to
ttfquery, I've managed to get 3D text working on Python 3, which was
the last thing needed to make a Python 3 version of VPython. I'll be
in France for a couple weeks so there won't be a Python 3 version
instantly, as I need to clean up some stuff. I'm accompanying Ruth
Chabay, who has been invited to give a talk at an international
physics education conference in Reims. She's going to talk about the
computational modeling our physics students do using VPython.

The problems I had to overcome were of course in areas where the 2to3
conversion just couldn't do the job, due to data interpretation
issues. I even found a couple of cases in ttfquery where there was N/2
(giving 1.5 if N is 3) which should have been N//2 (giving 1 if N is
3). There was also a case of map returning a map instead of a list,
and list(map(....)) wouldn't work.

Bruce Sherwood

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