Re: [Gnuplot-py-users] is it possible to continue to Debug when figure is created??

[Flavio C. <fcc...@gm...>]

Hi Sandy,

You error is due to the fact that you have not imported Gnuplot as you
should. So that snippet would become:

import Gnuplot
Gnuplot.GnuplotOpts.prefer_inline_data = 1
Gnuplot.GnuplotOpts.prefer_fifo_data = 0

Liveplots is free-software and you are welcome to use it if you find it
suits your needs. To install it, if you have setuptools installed, you
write:

easy_install liveplots

otherwise, just checkout the code, as explained here
https://code.google.com/p/liveplots/source/checkout, and run:

python setup.py install

these commands may be sligthly different depending on which operating system
you use.

Flávio


On Tue, May 18, 2010 at 2:47 PM, Sandy Ydnas <cd...@li...> wrote:

>
> Hi Flávio
> thank you very much for help
>
> if we use
>
> from numpy import *
>
> g  = Gnuplot.Gnuplot(persist=0)
>
> then
> NameError: name 'Gnuplot' is not defined
> File "C:\start_Feb_8\my_PY_code\May_18__gnuplot_answer_test_1.py", line 3,
> in <module>
>
>   g  = Gnuplot.Gnuplot(persist=0)
> as I mentioned I am very new in Python
> may I use you project [1]http://code.google.com/p/liveplots/
>
> but how to install it??
>
> Thank you very much in advance
> Sandy
>
> ------------------------------
> From: fcc...@gm...
> Date: Tue, 18 May 2010 10:25:18 +0100
> To: gnu...@li...
> Subject: Re: [Gnuplot-py-users] is it possible to continue to Debug when
> figure is created??
>
>
> Sandy,
>
> Like Michael said, You can turn off fifo data transfer and use inline with
> these lines:
>
> Gnuplot.GnuplotOpts.prefer_inline_data = 1
> Gnuplot.GnuplotOpts.prefer_fifo_data = 0
>
> I do this in Liveplots[1] and found that inlining data improved the
> performance enormously. Besides, since I use Python's multiprocessing module
> to plot data from children processes, FIFO did not work for me.
>
> Flávio
>
>
> [1]http://code.google.com/p/liveplots/
>
> On Tue, May 18, 2010 at 8:17 AM, Benny Malengier <
> ben...@gm...> wrote:
>
>
>
> 2010/5/18 Michael Haggerty <mh...@al...>
>
>  Sandy Ydnas wrote:
> > I am staring now to use Gnuplot under Python, since Matplotlib has
> > problem - it gets stuck during debugging after show().
> >
> > pls help understand is Gnuplot­­­ debugging friendly, it means is it
> > possible to continue to Debug when figure is created??
>
> I personally don't use pdb, but I don't know of any reason why it should
> be difficult to debug code that uses Gnuplot.py.  The only thing that
> occurs to me is that the use of FIFOs to communicate data to gnuplot
> currently requires the use of additional threads that write the data to
> the FIFO, and debugging multithreaded code might be tricky.  But the use
> of FIFOs is optional; you could configure Gnuplot.py to use temporary
> files or inline data instead.
>
> Please tell us what you find out!
>
>
> Use
> g  = Gnuplot.Gnuplot(persist=0)
> The persist=0 should allow you to easily jump over the code that does the
> figure.
>
> Benny
>
>
> Michael
>
>
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> --
> Flávio Codeço Coelho
>
>
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-- 
Flávio Codeço Coelho