Do a Gnuplot of a file in python

[Santix]

I am doing a python program that save the data in a text file in columns and
I want to do a gnuplot to plot the results.
But I want the program in python to show the result with gnuplot.
I have tried this:

g.load(power.p)

but it gives me this error:

Traceback (most recent call last):
  File "./spectrum_output.py", line 310, in <module>
    main_loop(tb)
  File "./spectrum_output.py", line 289, in main_loop
    g.load(power.p)
AttributeError: 'file' object has no attribute 'p'

On power.p I have this:

set autoscale
unset logscale
unset label
set xtic auto
set ytic auto
set title "Spectrum Analyzer"
set xlabel "Frecuency"
set ylabel "Power (dB)"
plot "power.dat" using 1:2 title 'm.data[0]' with linespoints

And in power.dat:
2231500000.0    18.2582263947
2234500000.0    17.0396003723
        ...                      ...
with more data

It goes ok when I load it in gnuplot, but not when I execute the python
program in the Terminal.

Thanks in advance!

Regards,

Santiago Ortega. 
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