added a line: >plt.close(fig) to plot_two_yscales which closes the figure instance from the pylab state machine. thus preventing a 'more than 20 figures are open' error.
added a line:
>plt.close(fig)
to plot_two_yscales which closes the figure instance from the pylab state
machine. thus preventing a 'more than 20 figures are open' error.

leobrowning92/pa-control,leobrowning92/pa-control