[PyQt] licensing

KONTRA, Gergely pihentagy at gmail.com
Thu Jun 23 10:00:33 BST 2011

On Thu, Jun 23, 2011 at 10:33, Phil Thompson
<phil at riverbankcomputing.com> wrote:
> On Wed, 22 Jun 2011 10:35:40 +0200, "KONTRA, Gergely"
> <pihentagy at gmail.com>
> wrote:
>> Hi all!
>> Maybe a bit offtopic and theoretical question:
>> Suppose I'd like to write an app in python and Qt. I evaluate the
>> possibilities, and see, that pyqt is more stable now, so I decide to
>> begin coding with it (with the free version). When I make this
>> decision, I already think to wait for a more complete/stable PySide
>> binding and distribute my code which uses PySide (with a less
>> restrictive license). Or I first release it with PyQt, but later on I
>> find PySide, which has a less restrictive license.
>> Is any of the above cases the violation of the License Terms? So is it
>> legal? Is it fair?
>> And consider another case: I begin to write my app with Pyside, and
>> later release a version with pyqt at some point. Can I later release a
>> newer PySide based version with license compatible with PySide (which
>> is not compatible with pyqt's license)?
>> Yet another case: I do a prototype with PyQt, and than hand-convert it
>> to Qt/C++.
> You haven't said what license you want to use for your code. If you use
> the GPL version of PyQt then your license must be compatible with the GPL.
> Phil
This question is a question, as long as somebody would like to release
the PySide version, which conforms to the PySide license, but not
compatible with PyQt's license.

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