About Trolltech QT OpenSource license.

Kevin Walzer kw at codebykevin.com
Wed Apr 11 00:35:01 CEST 2007

king kikapu wrote:

> @ Kevin and Jarek :
> thanks for the enlightening of that GPL thing. So, if i understand, i
> create my Python software using Qt as my GUI, i earn the money for it
> with the obligation to release my source code and somewhere in my
> files i explicilty write that this software is under the GPL lisence,
> is that correct ?? And i am legal all the way out ??

That's correct, as far as I know. (IANAL)
> So why these people at Trolltech have the word "Commercial" at their
> mouth all the time ?? I can understand of course that money is all
> about but becauce they released Qt under GPL they simply cannot
> prevent anyone from gaining money using it.

In this case, "commercial" == "proprietary" == "closed-source." If your 
source is released in complicance with the GPL, you don't have to buy a 
license from Trolltech.

Kevin Walzer
Code by Kevin

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