[lraoux]

hi all, just a few programming questions:

1. how do I initialize and define an integer variable?
2. how do I serialize/deserialize it so that I can make it keep its value between each time I run the program?
3. how can I perform a square root with double as the return type?

That's it for now, I may have more later though...

thanx in advance~

[lfd]

Hi lraoux and welcome to the forum

1) in python you don't have to car about the data type. Still you have the choice of using Integers, Floating point numbers and Complex numbers and force there type:

>>>print int(5.15)
5
>>>print float(5)
5.0

for more details go at the Python page

2) you can write there value in an external file or the phone database. Then at the startup you read them and load the proper values

3) use the math library

>>>from math import sqrt
>>>print sqrt(8)
2.82842712475

your questions are more Python related than PyS60, so checking the python 2.2.2 docs would be a great help for you

LFD

[lraoux]

ok.. wow thx that helped alot!

but I'm still confused about the 2nd thing. Could you be a little more specific?

p.s.: if possible, could we communicate through AIM? my IM is MLsaifer22

[lfd]

Hi lraoux,

The second point is quite easy to achieve.

• with database download PythonForS60_doc_1_3_14.pdf if you don't have it and check 7.4 (e32db) you have all method described. Just some SQL queries and it's done
• To write into files you could use .INI files, XML,... just do some googling or whatever your prefer, you'll easily find examples and/or libraries

LFD