On 29/12/2015 14:25, damien.ishacian at gmail.com wrote: > hello I would only change the scale of the y-axis, how to deal with matplotlib.pyplot or another library ? > Please show us your code. The best way to deal with any library is to read the docs so start here http://matplotlib.org/contents.html -- My fellow Pythonistas, ask not what our language can do for you, ask what you can do for our language. Mark Lawrence