Re: [Gnuplot-py-users] Running Gnuplot.py in IDLE

[Michael H. <mh...@al...>]

Samuel H. Dupree, Jr. wrote:
> I'm attempting to run Gnuplot in Python under IDLE. I'm running Python
> version. 2.5 on a Power Mac G4 under Mac OS X, version 10.4.11. I've
> installed Gnuplot-py version 1.8 and I have Gnuplot version 4.2.
> 
> [...]
> However, when I attempt to run this program under IDLE, I get no plot
> whatsoever and IDLE produces the following report:
> 
> Python 2.5 (r25:51918, Sep 19 2006, 08:49:13)
> [GCC 4.0.1 (Apple Computer, Inc. build 5341)] on darwin
> Type "copyright", "credits" or "license()" for more information.
> 
>     ****************************************************************
>     Personal firewall software may warn about the connection IDLE
>     makes to its subprocess using this computer's internal loopback
>     interface.  This connection is not visible on any external
>     interface and no data is sent to or received from the Internet.
>     ****************************************************************
>    
> IDLE 1.2     
>>>> ================================ RESTART
> ================================
>>>>
> gnuplot> set terminal aqua
> 
> Traceback (most recent call last):
>   File "/Users/samueldupree/python programs/example_gnuplot.py", line
> 16, in <module>
>     g.plot(t, y)
>   File
> "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/Gnuplot/_Gnuplot.py",
> line 285, in plot
>     self.refresh()
>   File
> "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/Gnuplot/_Gnuplot.py",
> line 226, in refresh
>     self(self.plotcmd + ' ' + string.join(plotcmds, ', '))
>   File
> "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/Gnuplot/_Gnuplot.py",
> line 210, in __call__
>     self.gnuplot(s)
>   File
> "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/Gnuplot/gp_macosx.py",
> line 144, in __call__
>     self.flush()
> IOError: [Errno 32] Broken pipe
>>>>
> 
> My questions for the list are:
> 
>    1. What am I doing wrong?
>    2. What path variables of parameters do I need to set?
>    3. Why does my program work when running in a terminal window as
>       opposed to running under IDLE?

It could be that your PATH is not set correctly when running under idle,
and so Gnuplot.py cannot find the gnuplot executable.

Michael