realtime plot two parameter in python #19

hello
first sorry my english is not that good , hope you understand
thank you

i tryng to realtime plot two parameter in python

exemple i do have this two parameter , time and a value from a sensor

print 'time ' ,time2
print 'sensor1 ' ,sensor1

this parameter is well 'print'
so i want to plot it
i have tried several conbination , without success

exemple
plot_scatter('',time2,sensor1,3,'','','')
plot_hist(r2, height=20.0, bincount=None, pch='o', colour='white', title='', xlab=None, nosummary='')

can you help me to go on
i am using it in raspberry