[PyKDE] Qt for windows...

Phil Thompson phil at river-bank.demon.co.uk
Wed Jun 27 03:05:17 BST 2001


Matt Gerassimoff wrote:
> 
> On Tue, 26 Jun 2001, Phil Thompson wrote:
> 
> > Boudewijn Rempt wrote:
> > >
> > > Trolltech is really confusing me now - but anyway:
> > >
> > > http://www.trolltech.com/company/announce/noncommercial.html
> > >
> > > This makes freely distributing binaries of PyQt for Windows
> > > legal... Funny: you cannot make an app and use it in your
> > > work, but you can make an app, give it away, and the people
> > > who receive it can use it in their work. That is not all:
> > > there's a paragraph aimed specifically at PyQt. You cannot
> > > distribute PyQt freely under another license than the
> > > non-commercial license, and it is  a very difficult point
> > > whether any script isn't directly usage of Qt, instead
> > > of PyQt.
> >
> > Does it mention PyQt explicitly?
> 
> It means you can compile and release PyQt for non-commercial purposes.
> 
> >
> > You can, of course, distribute PyQt freely under the BlackAdder license.
> 
> You could, but now you don't need BlackAddr to release a version of PyQt
> or a program developed under PyQt for windows because the licence allows
> non-commercial programs to be released for free.  So now it's just a
> matter of building sip and PyQt with Qt under windows.

You need BlackAdder (or a regular Qt commercial license) if you want to
develop commercial PyQt applications.

I'm still not clear on this new license - am I right in thinking that
Trolltech are saying that the PyQt layer is transparent as far as the
license is concerned?

In other words, you can only use the PyQt binaries under exactly the
same circumstances as the C++ version.

Phil




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