Another new experimental version of VPython for Windows Python 2.2 is
available at vpython.org.
This package contains new versions of a number of demo programs, to exploit
the new mouse machinery.
A significant change, soon to become standard, is that Visual no longer
automatically imports the functions random, randint, and uniform from the
whrandom module. This module has essentially been replaced by the random
module. Rather than automatically import the newer random module, it seems
prudent not to do this automatically. Some VPython users had already gotten
caught by name conflicts due to this automatic import.
If you do have a program that uses random functions, you can insert this
line to obtain the old behavior:
from random import random, randint, uniform
Note however that randint is now officially "deprecated" in favor of a more
Pythonish sequence-oriented randrange function.
It is important that Visual automatically imports the standard math module,
so that trig and other functions are always available to all VPython
programs. But the number of programs that require random functions is
relatively small.
Bruce Sherwood
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