OK, this script is driving me nuts. Heres my problem:

I want the head button to trigger an event when pressed. The script runs fine until line 42...

TypeError: 'str' object is not callable

At witch point the text is read and the script locks up. I am new to python and I am frustrated. I'm sorry if I am annoying anyone on IRC

Does anyone know how to fix this?

Here is the code:

http://pastebin.com/m316f89c

If you uncomment the last line, you can see how I intend the script to work.

Thanks.

Here is a version where the output is printed, not spoken. It
works fine without using tts, so that must be the soucse of the
problem. I wish I could help more...

you have to cast your integer/float to str before printing them with print().

To do this :

ligh_level = 10
print "the light level is " + str(light_level)

use str() 

The problem wasn't really a cast problem, but the fact that the callback was not threaded. I've fixed this problem with techgeek on IRC, so it should be OK now.

Please share the solution with us. This is a very interesting problem and I really like how you got the problem solved...

Thanks,
Holger