Gnuplot woes.

[Jacek Generowicz]

The following program:

------------------------
import Gnuplot
import string

g = Gnuplot.Gnuplot()
g('set data style lines')

command = ''
while string.lstrip(string.rstrip(command)) !=
'quit':

    g.plot( [[1,1],[2,2],[3,3],[4,4]] )
    command = raw_input('plot> ')
    g.hardcopy( 'hmm.ps' )
-------------------------

gives output like this:

=========================
plot>
plot>
gnuplot> plot '/usr/tmp/@32453.1' notitle
              ^
         can't read data file "/usr/tmp/@32453.1"
         line 0: (No such file or directory)


plot>
gnuplot> plot '/usr/tmp/@32453.2' notitle
              ^
         can't read data file "/usr/tmp/@32453.2"
         line 0: (No such file or directory)
==========================

In the minimal program shown above, the problem
can be removed by moving the g.plot() command to
just before the g.hardcopy() command . . . but in
more complicated programs even this fails.

I would welcome any advice,

Jacek