My script incorrectly adds 1 extra int to game propert, why? been spending this whole day trying to figure out why
my script adds 1 extra (wrongfully) int to the property 'score'.
All code works, excepts that the IF statement adds one extra int, messing up the score since only one int should be added.

I'm a newbie to scripting so an answer would be beautiful.
Thanks
Your keyboard sensors will keep triggering while the key is pressed, possibly triggering your script twice or more for a single key press. To solve this, enable the "Tap" button so that it only triggers once for a press.

I can also recommend reading up on PEP 8 -- Style Guide for Python Code. It gives you guidance on naming conventions; following it makes it easier to collaborate with others, and also makes it easier for us to understand your code and help you with issues.