|   | 1 |  initial version  | 
You can use the FormatStrFormatter of matplotlib.
sage: from matplotlib import ticker
sage: TT = ticker.FormatStrFormatter('%.7f')
sage: plot(1-2*x^2,x,.707106,.707107, tick_formatter=TT)
 Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.
 
                
                Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.