On this page
matplotlib.axes.Axes.can_zoom
Axes.can_zoom()- 
    
Return True if this axes supports the zoom box button functionality.
 
© 2012–2017 Matplotlib Development Team. All rights reserved.
Licensed under the Matplotlib License Agreement.
 http://matplotlib.org/2.0.2/api/_as_gen/matplotlib.axes.Axes.can_zoom.html