Re: [Visualpython-users] "import random" Odd Behavior on OSX install VPython v.3.1

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

For someone "very very very new" to this, you ask your question very
knowledgeably. From the first page of the VPython documentation:

As a convenience to novice programmers to provide everything that is
needed to get started, the statement "from visual import *" imports
all of the Visual features and executes "from math import *" and "from
numpy import *". It also arranges that for routines common to both
math and numpy such as sqrt, the much faster math routine is used when
possible (when the argument is a scalar rather than an array).

If you want to import the visual objects selectively, import them from
the vis module. Two simple examples:
import vis

vis.box(color=vis.color.orange,material=vis.materials.wood)

from vis import (box, color, materials)
box(color=color.orange, material=materials.wood)

There are clean modules vis.controls, vis.filedialog, and vis.graph
equivalent to the modules visual.controls, visual.filedialog, and
visual.graph. The latter versions execute "from visual import *" and
are retained because some programs expect that behavior when importing
one of these modules.

The documentation is written assuming that "from visual import *" is used.

Bruce Sherwood

On Tue, May 24, 2011 at 1:28 PM, Eric Dick <mon...@ma...> wrote:
> Hello,
> I recently installed the VPython v.3.1 and corresponding Python versions for
> mac (OSX).  I've been troubleshooting an old script of mine when I noticed
> some odd behavior.
> When I run my script, a line tries to import random.  Oddly the shell
> reports that its using a file from numpy rather than from
> ~/python3.1/random.py.  If I try to import random  manually in the shell it
> grabs the correct module from ~/python3.1/random.py.
> A. Python Shell
>>>> import random
>>>> print (random.__file__)
> /Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/random.py
> B. Script File
>>>> print (random.__file__)
> /Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/site-packages/numpy/random/__init__.py
> Does anyone know how to fix this?  Also does anyone know what is going on?
> Please reply with complete instructions, as I am very very very new to all
> of this.
> Thank you all in advance!
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