gnuplot-py-users Mailing List for Gnuplot.py

I had to do the same with pyvtk (no support for numpy floats in the version=

 in
the repos).
I could have sworn I did not install that from CVS on edgy, but perhaps I
remember wrong. Personally I suspect some numpy conversion happened
automatically and now not anymore...

Benny

Quoting Pau Cervera Badia <ce...@ff...>:

> Great!
>
> Thanks very much! ;-)
>
> bm...@ca... wrote:
>> Downloading SVN version, and installing, leaving the Unix configurations
>> untouched from their defaults, solves the problem.
>>
>> Pau, I would suggest you do the same.
>> Getting rid of the annoying with messages is an added bonus!
>>
>> Benny
>>
>> Quoting bm...@ca...:
>>
>>
>>> Using 2.4 does not solve it on my system.
>>> Same error.
>>>
>>> Quoting Pau Cervera Badia <ce...@ff...>:
>>>
>>>
>>>> I had the same problem yesterday. I solved by using python2.4 instead
>>>> of python2.5 which comes with Feisty as default. I couldn't find a
>>>> better solution.
>>>>
>>>> Hope that helps,
>>>>
>>>> bm...@ca... wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> I upgraded my PC to Feisty, and gnuplot gives wrong results.
>>>>>
>>>>> Inline passing of Data no longer works.
>>>>> Running eg test.py :
>>>>>
>>>>> ############### test GridData and compute_GridData ##########
>>>>> a function of two variables from a GridData file
>>>>> Press return to show results...
>>>>> Warning: empty x range [-10:-10], adjusting to [-9.9:-10.1]
>>>>> Warning: empty y range [-0.839072:-0.839072], adjusting to
>>>>> [-0.830681:-0.847462]
>>>>> Warning: empty z range [0.544021:0.544021], adjusting to [0.538581:0.=

54
>>>>>
>> 9
>>
>>> 461]
>>>
>>>>> further:
>>>>>
>>>>> gnuplot> set parametric
>>>>> gnuplot> set data style lines
>>>>> gnuplot> set hidden
>>>>> gnuplot> set contour base
>>>>> gnuplot> set xlabel "x"
>>>>> gnuplot> set ylabel "y"
>>>>> gnuplot> splot '/tmp/tmpYPH6zP' notitle
>>>>> Same thing, inline data
>>>>> Press return to show results...
>>>>> Warning: empty x range [0:0], adjusting to [-1:1]
>>>>> Warning: empty y range [-1.5:-1.5], adjusting to [-1.485:-1.515]
>>>>> Warning: empty z range [-2.25:-2.25], adjusting to [-2.2275:-2.2725]
>>>>> Notice: cannot contour non grid data!
>>>>> Notice: No surface grid anything could be hidden behind
>>>>>          line 24: *All* edges undefined or out of range, thus no plot=

.
>>>>>
>>>>> I am on AMD64, dual core, standard Feisty packages (so python-gnuplot=

 1
>>>>>
>> .
>>
>>> 7)
>>>
>>>>> Anything I can do to get my code working again quickly?
>>>>>
>>>>> Benny
>>>>>
>>>>> ----------------------------------------------------------------
>>>>> This message was sent using IMP, the Internet Messaging Program.
>>>>>
>>>>> ---------------------------------------------------------------------=

--
>>>>>
>> -
>>
>>> -
>>>
>>>>> This SF.net email is sponsored by DB2 Express
>>>>> Download DB2 Express C - the FREE version of DB2 express and take
>>>>> control of your XML. No limits. Just data. Click to get it now.
>>>>> http://sourceforge.net/powerbar/db2/
>>>>> _______________________________________________
>>>>> Gnuplot-py-users mailing list
>>>>> Gnu...@li...
>>>>> https://lists.sourceforge.net/lists/listinfo/gnuplot-py-users
>>>>>
>>>>>
>>>>>
>>>>>
>>>> --
>>>> Pau Cervera i Badia (e-mail ce...@ff...)
>>>> {
>>>>   Departament de F=EDsica Fonamental               Mart=ED i Franqu=E9=

s,
>>>>
>>> 1
>>>
>>>>   Universitat de Barcelona                 Planta 3, despatx 346 bis
>>>>                                                      08028 Barcelona
>>>>   tel: +34 934 039 708                                         Spain
>>>>
>>>>   "Simple things should be simple, complex things should be possible."
>>>>                                                            -- Alan Kay
>>>>   return http://www.ffn.ub.es/%7Ecervera/
>>>> }
>>>>
>>>>
>>>
>>> ----------------------------------------------------------------
>>> This message was sent using IMP, the Internet Messaging Program.
>>>
>>> -----------------------------------------------------------------------=

--
>>> This SF.net email is sponsored by DB2 Express
>>> Download DB2 Express C - the FREE version of DB2 express and take
>>> control of your XML. No limits. Just data. Click to get it now.
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>>> Gnu...@li...
>>> https://lists.sourceforge.net/lists/listinfo/gnuplot-py-users
>>>
>>>
>>
>>
>>
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-
>> This SF.net email is sponsored by DB2 Express
>> Download DB2 Express C - the FREE version of DB2 express and take
>> control of your XML. No limits. Just data. Click to get it now.
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>
> -- 
> Pau Cervera i Badia (e-mail ce...@ff...)
> {
>   Departament de F=EDsica Fonamental               Mart=ED i Franqu=E9s, =

1
>   Universitat de Barcelona                 Planta 3, despatx 346 bis
>                                                      08028 Barcelona
>   tel: +34 934 039 708                                         Spain
>
>   "Simple things should be simple, complex things should be possible."
>                                                            -- Alan Kay
>   return http://www.ffn.ub.es/%7Ecervera/
> }
>



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Great!

Thanks very much! ;-)

bm...@ca... wrote:
> Downloading SVN version, and installing, leaving the Unix configurations
> untouched from their defaults, solves the problem.
>
> Pau, I would suggest you do the same.
> Getting rid of the annoying with messages is an added bonus!
>
> Benny
>
> Quoting bm...@ca...:
>
>   
>> Using 2.4 does not solve it on my system.
>> Same error.
>>
>> Quoting Pau Cervera Badia <ce...@ff...>:
>>
>>     
>>> I had the same problem yesterday. I solved by using python2.4 instead
>>> of python2.5 which comes with Feisty as default. I couldn't find a
>>> better solution.
>>>
>>> Hope that helps,
>>>
>>> bm...@ca... wrote:
>>>       
>>>> Hi,
>>>>
>>>> I upgraded my PC to Feisty, and gnuplot gives wrong results.
>>>>
>>>> Inline passing of Data no longer works.
>>>> Running eg test.py :
>>>>
>>>> ############### test GridData and compute_GridData ##########
>>>> a function of two variables from a GridData file
>>>> Press return to show results...
>>>> Warning: empty x range [-10:-10], adjusting to [-9.9:-10.1]
>>>> Warning: empty y range [-0.839072:-0.839072], adjusting to
>>>> [-0.830681:-0.847462]
>>>> Warning: empty z range [0.544021:0.544021], adjusting to [0.538581:0.54
>>>>         
> 9
>   
>> 461]
>>     
>>>> further:
>>>>
>>>> gnuplot> set parametric
>>>> gnuplot> set data style lines
>>>> gnuplot> set hidden
>>>> gnuplot> set contour base
>>>> gnuplot> set xlabel "x"
>>>> gnuplot> set ylabel "y"
>>>> gnuplot> splot '/tmp/tmpYPH6zP' notitle
>>>> Same thing, inline data
>>>> Press return to show results...
>>>> Warning: empty x range [0:0], adjusting to [-1:1]
>>>> Warning: empty y range [-1.5:-1.5], adjusting to [-1.485:-1.515]
>>>> Warning: empty z range [-2.25:-2.25], adjusting to [-2.2275:-2.2725]
>>>> Notice: cannot contour non grid data!
>>>> Notice: No surface grid anything could be hidden behind
>>>>          line 24: *All* edges undefined or out of range, thus no plot.
>>>>
>>>> I am on AMD64, dual core, standard Feisty packages (so python-gnuplot 1
>>>>         
> .
>   
>> 7)
>>     
>>>> Anything I can do to get my code working again quickly?
>>>>
>>>> Benny
>>>>
>>>> ----------------------------------------------------------------
>>>> This message was sent using IMP, the Internet Messaging Program.
>>>>
>>>> -----------------------------------------------------------------------
>>>>         
> -
>   
>> -
>>     
>>>> This SF.net email is sponsored by DB2 Express
>>>> Download DB2 Express C - the FREE version of DB2 express and take
>>>> control of your XML. No limits. Just data. Click to get it now.
>>>> http://sourceforge.net/powerbar/db2/
>>>> _______________________________________________
>>>> Gnuplot-py-users mailing list
>>>> Gnu...@li...
>>>> https://lists.sourceforge.net/lists/listinfo/gnuplot-py-users
>>>>
>>>>
>>>>
>>>>         
>>> --
>>> Pau Cervera i Badia (e-mail ce...@ff...)
>>> {
>>>   Departament de Física Fonamental               Martí i Franqués,
>>>       
>> 1
>>     
>>>   Universitat de Barcelona                 Planta 3, despatx 346 bis
>>>                                                      08028 Barcelona
>>>   tel: +34 934 039 708                                         Spain
>>>
>>>   "Simple things should be simple, complex things should be possible."
>>>                                                            -- Alan Kay
>>>   return http://www.ffn.ub.es/%7Ecervera/
>>> }
>>>
>>>       
>>
>> ----------------------------------------------------------------
>> This message was sent using IMP, the Internet Messaging Program.
>>
>> -------------------------------------------------------------------------
>> This SF.net email is sponsored by DB2 Express
>> Download DB2 Express C - the FREE version of DB2 express and take
>> control of your XML. No limits. Just data. Click to get it now.
>> http://sourceforge.net/powerbar/db2/
>> _______________________________________________
>> Gnuplot-py-users mailing list
>> Gnu...@li...
>> https://lists.sourceforge.net/lists/listinfo/gnuplot-py-users
>>
>>     
>
>
>
> ----------------------------------------------------------------
> This message was sent using IMP, the Internet Messaging Program.
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> Gnuplot-py-users mailing list
> Gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-py-users
>
>
>   

-- 
Pau Cervera i Badia (e-mail ce...@ff...)
{
   Departament de Física Fonamental               Martí i Franqués, 1
   Universitat de Barcelona                 Planta 3, despatx 346 bis
                                                      08028 Barcelona
   tel: +34 934 039 708                                         Spain

   "Simple things should be simple, complex things should be possible."
                                                            -- Alan Kay
   return http://www.ffn.ub.es/%7Ecervera/
}

Downloading SVN version, and installing, leaving the Unix configurations
untouched from their defaults, solves the problem.

Pau, I would suggest you do the same.
Getting rid of the annoying with messages is an added bonus!

Benny

Quoting bm...@ca...:

> Using 2.4 does not solve it on my system.
> Same error.
>
> Quoting Pau Cervera Badia <ce...@ff...>:
>
>> I had the same problem yesterday. I solved by using python2.4 instead
>> of python2.5 which comes with Feisty as default. I couldn't find a
>> better solution.
>>
>> Hope that helps,
>>
>> bm...@ca... wrote:
>>> Hi,
>>>
>>> I upgraded my PC to Feisty, and gnuplot gives wrong results.
>>>
>>> Inline passing of Data no longer works.
>>> Running eg test.py :
>>>
>>> ############### test GridData and compute_GridData ##########
>>> a function of two variables from a GridData file
>>> Press return to show results...
>>> Warning: empty x range [-10:-10], adjusting to [-9.9:-10.1]
>>> Warning: empty y range [-0.839072:-0.839072], adjusting to
>>> [-0.830681:-0.847462]
>>> Warning: empty z range [0.544021:0.544021], adjusting to [0.538581:0.54=

9
> 461]
>>>
>>> further:
>>>
>>> gnuplot> set parametric
>>> gnuplot> set data style lines
>>> gnuplot> set hidden
>>> gnuplot> set contour base
>>> gnuplot> set xlabel "x"
>>> gnuplot> set ylabel "y"
>>> gnuplot> splot '/tmp/tmpYPH6zP' notitle
>>> Same thing, inline data
>>> Press return to show results...
>>> Warning: empty x range [0:0], adjusting to [-1:1]
>>> Warning: empty y range [-1.5:-1.5], adjusting to [-1.485:-1.515]
>>> Warning: empty z range [-2.25:-2.25], adjusting to [-2.2275:-2.2725]
>>> Notice: cannot contour non grid data!
>>> Notice: No surface grid anything could be hidden behind
>>>          line 24: *All* edges undefined or out of range, thus no plot.
>>>
>>> I am on AMD64, dual core, standard Feisty packages (so python-gnuplot 1=

.
> 7)
>>>
>>> Anything I can do to get my code working again quickly?
>>>
>>> Benny
>>>
>>> ----------------------------------------------------------------
>>> This message was sent using IMP, the Internet Messaging Program.
>>>
>>> -----------------------------------------------------------------------=

-
> -
>>> This SF.net email is sponsored by DB2 Express
>>> Download DB2 Express C - the FREE version of DB2 express and take
>>> control of your XML. No limits. Just data. Click to get it now.
>>> http://sourceforge.net/powerbar/db2/
>>> _______________________________________________
>>> Gnuplot-py-users mailing list
>>> Gnu...@li...
>>> https://lists.sourceforge.net/lists/listinfo/gnuplot-py-users
>>>
>>>
>>>
>>
>> --
>> Pau Cervera i Badia (e-mail ce...@ff...)
>> {
>>   Departament de F=EDsica Fonamental               Mart=ED i Franqu=E9s,
> 1
>>   Universitat de Barcelona                 Planta 3, despatx 346 bis
>>                                                      08028 Barcelona
>>   tel: +34 934 039 708                                         Spain
>>
>>   "Simple things should be simple, complex things should be possible."
>>                                                            -- Alan Kay
>>   return http://www.ffn.ub.es/%7Ecervera/
>> }
>>
>
>
>
> ----------------------------------------------------------------
> This message was sent using IMP, the Internet Messaging Program.
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> Gnuplot-py-users mailing list
> Gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-py-users
>



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Using 2.4 does not solve it on my system.
Same error.

Quoting Pau Cervera Badia <ce...@ff...>:

> I had the same problem yesterday. I solved by using python2.4 instead 
> of python2.5 which comes with Feisty as default. I couldn't find a 
> better solution.
>
> Hope that helps,
>
> bm...@ca... wrote:
>> Hi,
>>
>> I upgraded my PC to Feisty, and gnuplot gives wrong results.
>>
>> Inline passing of Data no longer works.
>> Running eg test.py :
>>
>> ############### test GridData and compute_GridData ##########
>> a function of two variables from a GridData file
>> Press return to show results...
>> Warning: empty x range [-10:-10], adjusting to [-9.9:-10.1]
>> Warning: empty y range [-0.839072:-0.839072], adjusting to 
>> [-0.830681:-0.847462]
>> Warning: empty z range [0.544021:0.544021], adjusting to [0.538581:0.549=

461]
>>
>> further:
>>
>> gnuplot> set parametric
>> gnuplot> set data style lines
>> gnuplot> set hidden
>> gnuplot> set contour base
>> gnuplot> set xlabel "x"
>> gnuplot> set ylabel "y"
>> gnuplot> splot '/tmp/tmpYPH6zP' notitle
>> Same thing, inline data
>> Press return to show results...
>> Warning: empty x range [0:0], adjusting to [-1:1]
>> Warning: empty y range [-1.5:-1.5], adjusting to [-1.485:-1.515]
>> Warning: empty z range [-2.25:-2.25], adjusting to [-2.2275:-2.2725]
>> Notice: cannot contour non grid data!
>> Notice: No surface grid anything could be hidden behind
>>          line 24: *All* edges undefined or out of range, thus no plot.
>>
>> I am on AMD64, dual core, standard Feisty packages (so python-gnuplot 1.=

7)
>>
>> Anything I can do to get my code working again quickly?
>>
>> Benny
>>
>> ----------------------------------------------------------------
>> This message was sent using IMP, the Internet Messaging Program.
>>
>> ------------------------------------------------------------------------=

-
>> This SF.net email is sponsored by DB2 Express
>> Download DB2 Express C - the FREE version of DB2 express and take
>> control of your XML. No limits. Just data. Click to get it now.
>> http://sourceforge.net/powerbar/db2/
>> _______________________________________________
>> Gnuplot-py-users mailing list
>> Gnu...@li...
>> https://lists.sourceforge.net/lists/listinfo/gnuplot-py-users
>>
>>
>>
>
> -- 
> Pau Cervera i Badia (e-mail ce...@ff...)
> {
>   Departament de F=EDsica Fonamental               Mart=ED i Franqu=E9s, =

1
>   Universitat de Barcelona                 Planta 3, despatx 346 bis
>                                                      08028 Barcelona
>   tel: +34 934 039 708                                         Spain
>
>   "Simple things should be simple, complex things should be possible."
>                                                            -- Alan Kay
>   return http://www.ffn.ub.es/%7Ecervera/
> }
>



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This message was sent using IMP, the Internet Messaging Program.

I think I already tried that. I will try that again when I'm at my desk
tomorrow. Should it not be possible to use the windows way: write to file t=

o
communicate with gnuplot? Or does it happen like that already?

Benny

Quoting Pau Cervera Badia <ce...@ff...>:

> I had the same problem yesterday. I solved by using python2.4 instead 
> of python2.5 which comes with Feisty as default. I couldn't find a 
> better solution.
>
> Hope that helps,
>
> bm...@ca... wrote:
>> Hi,
>>
>> I upgraded my PC to Feisty, and gnuplot gives wrong results.
>>
>> Inline passing of Data no longer works.
>> Running eg test.py :
>>
>> ############### test GridData and compute_GridData ##########
>> a function of two variables from a GridData file
>> Press return to show results...
>> Warning: empty x range [-10:-10], adjusting to [-9.9:-10.1]
>> Warning: empty y range [-0.839072:-0.839072], adjusting to 
>> [-0.830681:-0.847462]
>> Warning: empty z range [0.544021:0.544021], adjusting to [0.538581:0.549=

461]
>>
>> further:
>>
>> gnuplot> set parametric
>> gnuplot> set data style lines
>> gnuplot> set hidden
>> gnuplot> set contour base
>> gnuplot> set xlabel "x"
>> gnuplot> set ylabel "y"
>> gnuplot> splot '/tmp/tmpYPH6zP' notitle
>> Same thing, inline data
>> Press return to show results...
>> Warning: empty x range [0:0], adjusting to [-1:1]
>> Warning: empty y range [-1.5:-1.5], adjusting to [-1.485:-1.515]
>> Warning: empty z range [-2.25:-2.25], adjusting to [-2.2275:-2.2725]
>> Notice: cannot contour non grid data!
>> Notice: No surface grid anything could be hidden behind
>>          line 24: *All* edges undefined or out of range, thus no plot.
>>
>> I am on AMD64, dual core, standard Feisty packages (so python-gnuplot 1.=

7)
>>
>> Anything I can do to get my code working again quickly?
>>
>> Benny
>>
>> ----------------------------------------------------------------
>> This message was sent using IMP, the Internet Messaging Program.
>>
>> ------------------------------------------------------------------------=

-
>> This SF.net email is sponsored by DB2 Express
>> Download DB2 Express C - the FREE version of DB2 express and take
>> control of your XML. No limits. Just data. Click to get it now.
>> http://sourceforge.net/powerbar/db2/
>> _______________________________________________
>> Gnuplot-py-users mailing list
>> Gnu...@li...
>> https://lists.sourceforge.net/lists/listinfo/gnuplot-py-users
>>
>>
>>
>
> -- 
> Pau Cervera i Badia (e-mail ce...@ff...)
> {
>   Departament de F=EDsica Fonamental               Mart=ED i Franqu=E9s, =

1
>   Universitat de Barcelona                 Planta 3, despatx 346 bis
>                                                      08028 Barcelona
>   tel: +34 934 039 708                                         Spain
>
>   "Simple things should be simple, complex things should be possible."
>                                                            -- Alan Kay
>   return http://www.ffn.ub.es/%7Ecervera/
> }
>



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I had the same problem yesterday. I solved by using python2.4 instead of 
python2.5 which comes with Feisty as default. I couldn't find a better 
solution.

Hope that helps,

bm...@ca... wrote:
> Hi,
>
> I upgraded my PC to Feisty, and gnuplot gives wrong results.
>
> Inline passing of Data no longer works.
> Running eg test.py :
>
> ############### test GridData and compute_GridData ##########
> a function of two variables from a GridData file
> Press return to show results...
> Warning: empty x range [-10:-10], adjusting to [-9.9:-10.1]
> Warning: empty y range [-0.839072:-0.839072], adjusting to [-0.830681:-0.847462]
> Warning: empty z range [0.544021:0.544021], adjusting to [0.538581:0.549461]
>
> further:
>
> gnuplot> set parametric
> gnuplot> set data style lines
> gnuplot> set hidden
> gnuplot> set contour base
> gnuplot> set xlabel "x"
> gnuplot> set ylabel "y"
> gnuplot> splot '/tmp/tmpYPH6zP' notitle
> Same thing, inline data
> Press return to show results...
> Warning: empty x range [0:0], adjusting to [-1:1]
> Warning: empty y range [-1.5:-1.5], adjusting to [-1.485:-1.515]
> Warning: empty z range [-2.25:-2.25], adjusting to [-2.2275:-2.2725]
> Notice: cannot contour non grid data!
> Notice: No surface grid anything could be hidden behind
>          line 24: *All* edges undefined or out of range, thus no plot.
>
> I am on AMD64, dual core, standard Feisty packages (so python-gnuplot 1.7)
>
> Anything I can do to get my code working again quickly?
>
> Benny
>
> ----------------------------------------------------------------
> This message was sent using IMP, the Internet Messaging Program.
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> Gnuplot-py-users mailing list
> Gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-py-users
>
>
>   

-- 
Pau Cervera i Badia (e-mail ce...@ff...)
{
   Departament de Física Fonamental               Martí i Franqués, 1
   Universitat de Barcelona                 Planta 3, despatx 346 bis
                                                      08028 Barcelona
   tel: +34 934 039 708                                         Spain

   "Simple things should be simple, complex things should be possible."
                                                            -- Alan Kay
   return http://www.ffn.ub.es/%7Ecervera/
}

Hi,

I upgraded my PC to Feisty, and gnuplot gives wrong results.

Inline passing of Data no longer works.
Running eg test.py :

############### test GridData and compute_GridData ##########
a function of two variables from a GridData file
Press return to show results...
Warning: empty x range [-10:-10], adjusting to [-9.9:-10.1]
Warning: empty y range [-0.839072:-0.839072], adjusting to [-0.830681:-0.847462]
Warning: empty z range [0.544021:0.544021], adjusting to [0.538581:0.549461]

further:

gnuplot> set parametric
gnuplot> set data style lines
gnuplot> set hidden
gnuplot> set contour base
gnuplot> set xlabel "x"
gnuplot> set ylabel "y"
gnuplot> splot '/tmp/tmpYPH6zP' notitle
Same thing, inline data
Press return to show results...
Warning: empty x range [0:0], adjusting to [-1:1]
Warning: empty y range [-1.5:-1.5], adjusting to [-1.485:-1.515]
Warning: empty z range [-2.25:-2.25], adjusting to [-2.2275:-2.2725]
Notice: cannot contour non grid data!
Notice: No surface grid anything could be hidden behind
         line 24: *All* edges undefined or out of range, thus no plot.

I am on AMD64, dual core, standard Feisty packages (so python-gnuplot 1.7)

Anything I can do to get my code working again quickly?

Benny

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On Wed, Apr 18, 2007 at 11:26:21AM -0500, Grant Edwards wrote:

> I feel like I've spent the past 3 days beating my head against
> a wall: no matter what I do, I can't get gnuplot-py to work
> reliably on Win2K or WinXP.
[...]
> What refuses to work is when the program is started by clicking
> on a file whose type has been associated with the program.  In
> that case, I always get an "invalid parameter" IOError when
> gp_win32.py writes to the pipe in its __call__ method.

The base cause of Gnuplot.py failing is that os.popen() can't
be used if the CWD is a UNC network path.  See the link below
if you're interested in Microsoft's half-assed rationalization
of this particular bit of Windows breakage:

  http://support.microsoft.com/kb/156276/EN-US/

The answer is to change gp_win32.py so that instead of
os.popen() it uses subprocess.Popen() with shell=False.
However, there are bugs in the subprocess module that you have
to work-around:

  http://www.py2exe.org/index.cgi/Py2ExeSubprocessInteractions

Using subprocess.Popen() with the above work-arounds seems to
work.  

It also eliminates the requirement to double-quote a path that
contains a string.

After I've tested it a little more, I'll submit a patch.
  
-- 
Grant Edwards
gr...@vi...

On Wed, Apr 18, 2007 at 08:44:23PM +0200, Michael Haggerty wrote:
> Grant Edwards wrote:
> > [...]
> > What refuses to work is when the program is started by clicking
> > on a file whose type has been associated with the program.  In
> > that case, I always get an "invalid parameter" IOError when
> > gp_win32.py writes to the pipe in its __call__ method.
> 
> I think that is the error that results if Gnuplot.py is not able to
> start the "pgnuplot.exe" binary.  Perhaps you have a PATH problem?

I'm setting the complete path to pgnuplot.exe in GnuplotOpts.

The program works fine when started by:
  
 1) command line from any directory (local or networked).

 2) desktop shortcut icon with any 'start in' directory (local
    or networked).

 3) double-clicking an associated file in any local directory.
 
It only fails when one double-clicks an associated fine in a
network directory. I've verified that in all cases the correct
path to pgnuplot.exe is being used.  The program doesn't try to
open or access any files in the current directory.  All it does
is this:

#!/usr/bin/env python
import sys,math,tempfile,os,itertools,wx
from wx.lib.floatcanvas import NavCanvas, FloatCanvas, Resources
import wx.lib.colourdb
from sectionedFile import SectionedFile
import Gnuplot

# if we're on a Windows system and there's a pgnuplot.exe file
# in our "install" directly, tell the Gnuplot module to use
# that instead of whatever's in our PATH

sys.stderr.write("cwd: %s\n" % os.getcwd())
if sys.platform == 'win32':
    installpath = os.path.abspath(os.path.dirname(sys.argv[0]))
    gnuplotpath = os.path.join(installpath,'pgnuplot.exe')
    sys.stderr.write("installpath '%s'\n" % installpath)
    sys.stderr.write("gnuplotpath '%s'\n" % gnuplotpath)
    if os.path.isfile(gnuplotpath):
        if ' ' in gnuplotpath:
            gnuplotpath = '"' + gnuplotpath + '"'
        Gnuplot.GnuplotOpts.gnuplot_command = gnuplotpath;
        sys.stderr.write( "using pgnuplot at %s\n" % Gnuplot.GnuplotOpts.gnuplot_command)
    else:
        sys.stderr.write("didn't find pgnuplot at %s -- hope it's in your path...\n" % gnuplotpath);

import time
gp = Gnuplot.Gnuplot(debug=1)
gp('plot sin(x)')
time.sleep(1)
gp('plot cos(x)')
time.sleep(1)
gp('plot tan(x)')
time.sleep(1)
sys.exit(0)

-- 
Grant Edwards
gr...@vi...

Grant Edwards wrote:
> [...]
> What refuses to work is when the program is started by clicking
> on a file whose type has been associated with the program.  In
> that case, I always get an "invalid parameter" IOError when
> gp_win32.py writes to the pipe in its __call__ method.

I think that is the error that results if Gnuplot.py is not able to
start the "pgnuplot.exe" binary.  Perhaps you have a PATH problem?

> It's really not possible to describe how much I hate working
> with Microsoft Windows...

I feel your pain, but I don't share it :-).  Perhaps a Windows user has
more insight into your problem.

Michael

I feel like I've spent the past 3 days beating my head against
a wall: no matter what I do, I can't get gnuplot-py to work
reliably on Win2K or WinXP.

It seems to work fine in the following situations:

 * Program called "normally" (e.g. python foo.py) with current
   directory containing pgnuplot.exe and wgnuplot.exe.

 * Program bundled via py2exe and called via shortcut icon
   starting in directory containing [pw]gnuplot.exe

 * Program bundled via py2exe and called via shortcut icon
   starting in different directory.

 * Program bundled via Py2exe and called via command-line from
   anywhere.

What refuses to work is when the program is started by clicking
on a file whose type has been associated with the program.  In
that case, I always get an "invalid parameter" IOError when
gp_win32.py writes to the pipe in its __call__ method.

I've switch gp_win32.py so that it uses subprocess instead of
os.popen, and that doesn't seem to help. I get either the same
error or I get an "invalid handle" when the process is being
started.

Can anybody point me towards documentation on how to get
reliable operation on Win32?

It's really not possible to describe how much I hate working
with Microsoft Windows...

-- 
Grant Edwards
gr...@vi...