For realtime simulation it is important to have an ODE solver that is simple enough. I did not find any plug-and-play kind of ODE solvers for realtime applications so I wrote one myself. The greatest benefit of this approach is that you have full control of every time step. Good for realtime simulations.

https://github.com/sebnil/Python-ODE-Forward-Euler/blob/master/Forward-Euler%20ODE%20solver.ipynb

It is very simple but show the basics of how to write an ODE solver. It could be extended to use more sophisticated solvers like Runge-Kutta or Crank-Nicolson.

I wanted to learn some basic game development in OpenGL and Python. Pyglet is very good for this kind of thing. Unfortunately it seems to have a less active community compared to Pygame (but in my opinion Pyglet seems much more Pythonic in its design). My game will not win any awards since it is a Asteroids clone. But it has some other features like:

• Bullets have recoil and will slightly accelerate the ship rearwards when shooting.
• Game graphics from a professional artist. (nalishac.com)
• When I started this list I thought there would be more features but I think this is it.

pyglet-asteroids on Github

Using a lot of code and inspiration from:

• http://steveasleep.com/pyglettutorial.html

Code structure and inspiration from:

• http://tartley.com/?p=250

I wanted to know how much my financial assets are worth across one or more bank accounts, so I created a small python script for it.

I just type all my assets into a list like this:

assets = {
    'AAPL': {
        'own': 40,
        'current_value': yahoo_share('AAPL')
    },
    'Coca-Cola': {
        'own': 35,
        'current_value': yahoo_share('KO')
    },
    'NOF': {
        'own': 170,
        'current_value': yahoo_share('NOF.OL')
    },
    'Nordnet Superfonden Sverige': {
        'own': 6.4099,
        'current_value': morningstar("http://www.morningstar.se/Funds/Quicktake/Overview.aspx?perfid=0P0000J24W")
    },
    'SEB Japanfond': {
        'own': 491.8263,
        'current_value': morningstar("http://www.morningstar.se/Funds/Quicktake/Overview.aspx?perfid=0P00000LU7")
    },    
}

Then I run the script and get an output looking a bit like this:

(Not my actual positions 🙂 )

Next step is to program a get rich quick algorithm. Until then the code for calculating assets is published here:
https://github.com/sebnil/Pengar