Nope. Functions from operator module don't care what type of objects you give them, as long as they implement __add__. However, if you for example give floats to int-bound methods, then you get an error.

yep new to slices should of used [2:], Still learning,adjusted solution

You're a bit faster than the shark (3m/s vs 2m/s), but you're also much further away from the pontoon than it is (31m away vs. 13m away), which means it will get to the pontoon first and you will be eaten if you try to get past it.

No problem, I marked it for you. Now you can see each time you post a message you have a little box Mark as having spoiler content you can tick under it.

Please use spoiler flag when posting code. This is not very pertinent, the solution page is here to get the solutions, feel free to comment your solutions there if you want.