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Doesn't QT cost $459 per month per developer[1] for use in commercial applications? That price is prohibitive for anyone but established enterprise.

[1] https://www1.qt.io/buy-product/

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No. In many cases, you can use Qt under the LGPL and thus for free. This is especially true when you use it via Python bindings such as PyQt.

That's good to know. Thanks for the info.

PyQT isn't LGPL though, it only offers GPLv3 or Commercial licensing.

That's true. So using PyQt you likely need a commercial license for PyQt and not Qt. Alternatively, you can use PySide2 instead of PyQt to avoid this restriction, but it's less mature.

Less mature for the moment, but it's getting more official support and resources, so that will probably change. (They've also changed the name from PySide2 to Qt for Python.)

http://blog.qt.io/blog/2018/04/13/qt-for-python-is-coming-to...

License-wise: "Qt for Python will have the same licensing as Qt for Application Development, i.e. it will be available under GPL, LGPL and commercial."

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