Hi, I wonder if there is a simple way of reversing the path direction? 

I have a back up solution that is get the original path start and end points and redraw new paths which reverse the start and end points when define the 'd' string. 

Instead of redraw the paths, is there a simple solution? 

Thanks!

You could reverse all selected path elements like this:

for element in self.svg.selection:
    if element.get('d', None):
        d = element.get_path().reverse()
        element.set("d", d)