matplotlib.axes.Axes.invert_yaxis
- 
Axes.invert_yaxis() - 
Invert the y-axis.
 
    © 2012–2018 Matplotlib Development Team. All rights reserved.
Licensed under the Matplotlib License Agreement.
    https://matplotlib.org/3.0.0/api/_as_gen/matplotlib.axes.Axes.invert_yaxis.html