Bug#818860: python-gnuplot: errors or warnings from gnuplot when running python-gnuplot demo.py

[Rick Thomas]

Package: python-gnuplot
Version: 1.8-6
Severity: normal

Dear Maintainer,

   * What led up to the situation?
Installed python-gnuplot then unpacked and ran the demo.py from
/usr/share/doc/python-gnuplot/examples
   * What was the outcome of this action?
error/warning messages were not expected, though demo seemed to run OK.

Please see attached output.

*** End of the template - remove these template lines ***


-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'stable-updates'), (500, 'stable')
Architecture: powerpc (ppc64)

Kernel: Linux 4.5.0-rc2-powerpc64 (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages python-gnuplot depends on:
ii  gnuplot       4.6.6-3
ii  python        2.7.11-1
ii  python-numpy  1:1.10.4-2

python-gnuplot recommends no packages.

python-gnuplot suggests no packages.

-- no debconf information
-------------- next part --------------
gnuplot> set title "A simple example"
gnuplot> set data style linespoints
gnuplot> plot "/tmp/tmp0sZGjZ.gnuplot/fifo" notitle

gnuplot> set data style linespoints
             ^
         line 0: unrecognized option - see 'help set'.

libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: swrast
gnuplot> reset
gnuplot> set title "Data can be computed by python or gnuplot"
gnuplot> set xlabel "x"
gnuplot> set ylabel "x squared"
gnuplot> plot x**2 title "calculated by gnuplot", "/tmp/tmpeJZf31.gnuplot/fifo" title "calculated by python" with points 3 3

gnuplot> plot x**2 title "calculated by gnuplot", "/tmp/tmpeJZf31.gnuplot/fifo" title "calculated by python" with points 3 3
                                                                                                                         ^
         line 0: unexpected or unrecognized token

gnuplot> set ylabel "x^2"
gnuplot> set output "gp_test.ps"
gnuplot> set terminal postscript enhanced color
gnuplot> plot x**2 title "calculated by gnuplot", "/tmp/tmph1xQH2.gnuplot/fifo" title "calculated by python" with points 3 3
gnuplot> set terminal x11
gnuplot> set output

gnuplot> plot x**2 title "calculated by gnuplot", "/tmp/tmph1xQH2.gnuplot/fifo" title "calculated by python" with points 3 3
                                                                                                                         ^
         line 0: unexpected or unrecognized token

gnuplot> reset
gnuplot> set parametric
gnuplot> set data style lines
gnuplot> set hidden
gnuplot> set contour base
gnuplot> set title "An example of a surface plot"
gnuplot> set xlabel "x"
gnuplot> set ylabel "y"

gnuplot> set data style lines
             ^
         line 0: unrecognized option - see 'help set'.

gnuplot> splot "/tmp/tmp6lu9P6.gnuplot/fifo" notitle
         line 0: warning: Cannot contour non grid data. Please use "set dgrid3d".
gnuplot> splot "/tmp/tmph7C4WQ.gnuplot/fifo" notitle
         line 0: warning: Cannot contour non grid data. Please use "set dgrid3d".
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******** Saved plot to postscript file "gp_test.ps" ********

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