Update physical kit mentions of Python version to 3.10

This doesn't touch the simulator, which will need a separate
release to make this change.

Fixes #346

Author: PeterJCLaw

programming/python/index.md

@@ -6,7 +6,7 @@ title: Python
 Python
 ======
 
-Student Robotics robots are all programmed in [Python 3.9](https://www.python.org);
+Student Robotics robots are all programmed in [Python 3.10](https://www.python.org);
 to program a robot, it is important that you have a basic understanding of Python.
 
 There are a number of tutorials out there which might help you to learn to program in Python:
@@ -15,11 +15,11 @@ There are a number of tutorials out there which might help you to learn to progr
     This was written especially for Student Robotics competitors,
     and explains the basics while trying not to overwhelm you.
 
-* [The Official Tutorial](https://docs.python.org/3.9/tutorial/) -- the good stuff starts at chapter 3,
+* [The Official Tutorial](https://docs.python.org/3.10/tutorial/) -- the good stuff starts at chapter 3,
     but you should at least skim the stuff before it;
     there is a lot there and it may be a little overwhelming.
 
 * A number of tutorials for beginners are linked to from [here](https://wiki.python.org/moin/BeginnersGuide/NonProgrammers).
     [Wikibooks Tutorial](https://en.wikibooks.org/wiki/Non-Programmer%27s_Tutorial_for_Python_3) seems like a good one.
 
-* [The Official Docs](https://docs.python.org/3.9/), for the version of python on the [Brain Board](/docs/kit/brain_board).
+* [The Official Docs](https://docs.python.org/3.10/), for the version of python on the [Brain Board](/docs/kit/brain_board).

tutorials/python.md

@@ -6,7 +6,7 @@ title: "Python: A whirlwind tour"
 Python: A whirlwind tour
 ========================
 
-In this tutorial, we'll introduce the basic concepts of programming, which will be central to the programs that you will run on your robot. There are many different languages in which computers can be programmed, all with their advantages and disadvantages, but for the Student Robotics competition we use one called Python 3.9. We chose it because it's good for beginners, but also elegant and powerful.
+In this tutorial, we'll introduce the basic concepts of programming, which will be central to the programs that you will run on your robot. There are many different languages in which computers can be programmed, all with their advantages and disadvantages, but for the Student Robotics competition we use one called Python 3.10. We chose it because it's good for beginners, but also elegant and powerful.
 
 Sprinkled through the tutorial are exercises. The first ones for each section should be quite easy, while the higher-numbered exercises will be harder. Some will be very hard; try these if you're up for a challenge.