[Edu-sig] Happy New Year 2011!!!

Corey Richardson kb1pkl at aim.com
Sun Jan 2 04:56:27 CET 2011


On 01/01/2011 10:01 PM, Vern Ceder wrote:
> On Sat, Jan 1, 2011 at 9:45 PM, Corey Richardson <kb1pkl at aim.com
> <mailto:kb1pkl at aim.com>> wrote:
> 
>     On 01/01/2011 09:38 PM, Vern Ceder wrote:
> 
>         Pardon my jumping in, but is turtle available from the interactive
>         shell? The turtle module should be in /usr/lib/Python2.6/lib-tk
>         on an
>         Ubuntu 10.4 installation. If it is, then it should work fine
>         from your
>         scripts. Is it available for you when you log onto the machine
>         directly?
> 
>         Cheers,
>         Vern
> 
>         On Sat, Jan 1, 2011 at 9:12 PM, A. Jorge Garcia
>         <calcpage at aol.com <mailto:calcpage at aol.com>
>            Well, I set up 25 PCs in my classroom on a gigabit LAN.  Each
>         PC is
>            running Ubuntu Desktop 10.04 - so, yes they have gnome and
>         yes they
>            have a GUI browser (Firefox).
> 
>            I took one of these PCs and called it the "server/teacher
>         station."
>              On this PC I added vsftp to share files with my students and
>            openssh so they can login to my PC as a server to save their
>         work.
> 
>            I call my PC the "teacher station" because I use it with a PC
>            Projector and a Slate (bluetooth remote mouse) mimicking a
>            SmartBoard setup to demo code and give notes and even show some
>            educational YouTube!  I recently added python and IDLE to
>         this server:
> 
>            apt-get install python
>            apt-get install idle
> 
>            We tried IDLE but prefer python scripts.  So, I have my students
>            login to the server via ssh from their "student stations" and
>         write
>            python scripts like hello.py which they chmod to make executable
> 
>            chmod 755 hello.py
> 
>            which works fine if the first line in the script is
> 
>            #!/usr/bin/python
> 
>            I tried to import turtle in a script using this environment but
>            turtle was not found.
> 
>            You say VPython works well with IDLE?  I was hoping to add
>         VPython,
>            GASP or turtle graphics to my scripts.
> 
>            What do you think?
> 
>            TIA,
>            A. Jorge Garcia
>            Applied Math and CompSci
>            http://shadowfaxrant.blogspot.com
>            http://www.youtube.com/calcpage2009
> 
>     From what I've read so far, the students are SSHing into a sever,
>     and writing their scripts from there (nano, vi, etc?). AFAIK, SSH is
>     usually just shell, which means no GUI from the host, and they can't
>     use turtle because it is a GUI app, using Tkinter IIRC.
> 
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> 
> 
> Right, the turtle and Tkinter are GUI apps, but the OP said they connect
> with the -Y parameter for X11 forwarding, so it should open an X11
> window on their machines - this is standard behavior for ssh. And the OP
> said turtle was not found, not that a screen couldn't be opened.
> 
> Cheers,
> Vern
> 
> -- 
> Vern Ceder
> vceder at gmail.com <mailto:vceder at gmail.com>, vceder at dogsinmotion.com
> <mailto:vceder at dogsinmotion.com>
> The Quick Python Book, 2nd Ed - http://bit.ly/bRsWDW
> 
> 
Whoops, guess I missed the -Y switch. Nevermind :)


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