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Re: Running external module and accessing the created objects

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On 03/09/2013 10:34 AM, Kene Meniru wrote:
> OK. Sorry to have caused all the confusion. Let me try this again.
>

Thank you very much.  This is much clearer, though it's not all here.

> To use my program the user needs a script file I will call user.py.
> Functions from my program must be imported into this file with
> something like "from myapp import *".

And does the user run this script by doing
     python  user.py

>
> myapp.py is a module in my program that has all the functions that the
> user needs to describe building components. There is also a main
> controller object that is imported into myapp.py module called app.
>
> When python parses user.py module,

You presumably mean, "When Python runs the script user.py"

> the functions the user has provided
> creates building components which are then saved in a dictionary
> located in an object called doc that is part of my program.

What program is that?  Looks to me like you're writing a series of 
modules, a framework perhaps, that is invoked by the user script.

>
> The user is free to use the functions in myapp.py to describe building
> components. When this process is complete or when the user wants to
> view their work-in-progress, they have to place a function called
> view() on the last line in user.py.

Don't you mean the code in user.py has to *call* the function app.view() 
when they're all done with defining the components?  That has nothing to 
do with being the last line.

> This function currently exports

You mean writes files into the file system?

> the components into POV-Ray or OpenSCAD format. These are CAD programs
> that read script files to render or create images of the described
> artifacts. So this means that to view their work the user needs to run
> python on user.py to export the building and then run POV-Ray or
> OpenSCAD on the exported file to see the building.

At that point, the user.py script has completed, and Python is done, right?

>
> I want to make it possible for the user to preview the building
> components without having to use the external rendering programs. I
> can currently have the app object provide this preview but it means
> that the user will have to process user.py with python then exit the
> graphic window each time they need to see changes.

What changes are those?  You can't change a script while it's executing. 
  Could you clarify this so I can rethink the following paragraph?

>
> So the solution I am looking for is to have a graphic window open that
> watches user.py for changes. If there is a change the graphic window
> updates the rendition of the created components without further
> intervention by the user. However this means that the graphic must
> somehow run python to parse user.py and then be able to access the
> objects stored in doc so that the coordinates can be used to update
> the view. This is where I am having difficulty.
>
> I hope this is clearer.
>



-- 
DaveA

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Thread

Running external module and accessing the created objects  Kene Meniru <Kene.Meniru@illom.org> - 2013-03-08 22:06 -0500
  Re: Running external module and accessing the created objects Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-03-09 08:03 +0000
    Re: Running external module and accessing the created objects Kene Meniru <Kene.Meniru@illom.org> - 2013-03-09 06:05 -0500
      Re: Running external module and accessing the created objects Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-03-09 11:34 +0000
    Re: Running external module and accessing the created objects Chris Angelico <rosuav@gmail.com> - 2013-03-09 22:47 +1100
    Re: Running external module and accessing the created objects Dave Angel <davea@davea.name> - 2013-03-09 07:02 -0500
    Re: Running external module and accessing the created objects Kene Meniru <Kene.Meniru@illom.org> - 2013-03-09 10:34 -0500
      Re: Running external module and accessing the created objects Rick Johnson <rantingrickjohnson@gmail.com> - 2013-03-09 08:51 -0800
        Re: Running external module and accessing the created objects Kene Meniru <Kene.Meniru@illom.org> - 2013-03-09 12:21 -0500
          Re: Running external module and accessing the created objects Rick Johnson <rantingrickjohnson@gmail.com> - 2013-03-09 10:33 -0800
    Re: Running external module and accessing the created objects Dave Angel <davea@davea.name> - 2013-03-09 11:12 -0500
    Re: Running external module and accessing the created objects Kene Meniru <Kene.Meniru@illom.org> - 2013-03-09 11:56 -0500
    Re: Running external module and accessing the created objects Dave Angel <davea@davea.name> - 2013-03-09 12:20 -0500
    Re: Running external module and accessing the created objects Kene Meniru <Kene.Meniru@illom.org> - 2013-03-09 12:39 -0500
    Re: Running external module and accessing the created objects Kene Meniru <Kene.Meniru@illom.org> - 2013-03-09 13:18 -0500
    Re: Running external module and accessing the created objects Kene Meniru <Kene.Meniru@illom.org> - 2013-03-11 19:57 -0400
      Re: Running external module and accessing the created objects Rick Johnson <rantingrickjohnson@gmail.com> - 2013-03-11 23:40 -0700
    Re: Running external module and accessing the created objects Dave Angel <davea@davea.name> - 2013-03-11 20:48 -0400
    Re: Running external module and accessing the created objects Kene Meniru <Kene.Meniru@illom.org> - 2013-03-11 21:23 -0400
    Re: Running external module and accessing the created objects Kene Meniru <Kene.Meniru@illom.org> - 2013-03-11 21:58 -0400
    Re: Running external module and accessing the created objects Dave Angel <davea@davea.name> - 2013-03-11 22:16 -0400
    Re: Running external module and accessing the created objects Dave Angel <davea@davea.name> - 2013-03-11 22:11 -0400
    Re: Running external module and accessing the created objects Michael Torrie <torriem@gmail.com> - 2013-03-11 22:05 -0600
    Re: Running external module and accessing the created objects Dave Angel <davea@davea.name> - 2013-03-12 07:20 -0400
    Re: Running external module and accessing the created objects Kene Meniru <kemeniru@gmail.com> - 2013-03-12 13:38 +0000
    Re: Running external module and accessing the created objects Kene Meniru <kemeniru@gmail.com> - 2013-03-12 13:28 +0000

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