Sandip Bhattacharya wrote:
Hi!

I was browsing around for a good python IDE when i hit upon Eric (http://www.die-offenbachs.de/detlev/eric3.html). Then something hit me in the eye when i looked up the project description.

=======================================
In order to use eric3 under Win... operating systems you need a commercial or educational license of Qt 3.x from Trolltech and the corresponding license of PyQt (which includes QScintilla) from Riverbank.
=======================================


My question is, why does *using* an open source product based on GPL'ed QT, require a commercial license? After all, I am not using the library in an application which i am selling?

Does that mean that any GPL'ed code based windows application cannot be used for commercial purposes?
The GPL and the commercial versions are identical code-wise. The only difference is in the licensing.

You can develop Qt software free of charge if the software you develop is released under the GPL license. If you develop closed source software, Trolltech offers commercial licenses.

See also
Stallman on GPL and QT.
http://linuxtoday.com/news_story.php3?ltsn=2000-09-05-001-21-OP-LF-KE


Cheers! Spoonman

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