Once again, comparison wxpython with PyQt

[Hans Müller]

Here we have to select between wxPython and PyQt for a medium size project.
In this project several hundred dialogs are to be created. This work will be done by a
program generator which has to re-written.

The question now is which framework should we use.
As far as I could found is PyQt with the Qt Framework the superior choice.
Most articles I found (not all) results to PyQt.
But Qt is expensive ~ 3400€ per Developer and OS.
Since these articles are more or less old, it would be nice to hear your current opinions.

Condensed, I found this pros / cons:

Pros for Qt:
- best framwork, well designed
- nice GUI builders
- faster execution
Cons:
- epensive

Pros for wxPython:
- cheap
- big community
Cons:
- more layers on top of OS
- more bugs (still valid ?)
- slower




Can someone tell me about his experiences with one or both frameworks ?

Thanks a lot,

Greetings
Hans

 

[Diez B. Roggisch]

Here we have to select between wxPython and PyQt for a medium size
project. In this project several hundred dialogs are to be created. This
work will be done by a program generator which has to re-written.

The question now is which framework should we use.
As far as I could found is PyQt with the Qt Framework the superior choice.
Most articles I found (not all) results to PyQt.
But Qt is expensive ~ 3400€ per Developer and OS.

No, it's not. It is LGPL by now.

You will have to pay licensing for *PyQT*. I'm not sure, but I *think* it's
about 500€. However, it is much less than Qt used to be.


Diez

 

[pdpi]

No, it's not. It is LGPL by now.

You will have to pay licensing for *PyQT*. I'm not sure, but I *think* it's
about 500€. However, it is much less than Qt used to be.

Diez

Not quite. You only have to pay for the commercial license -- you can
use PyQT as GPL as well. This may or may not be acceptable for Hans's
purposes, but nowhere near "have to pay licensing".

 

[Hilmar Bunjes]

No, it's not. It is LGPL by now.

You will have to pay licensing for *PyQT*. I'm not sure, but I *think* it's
about 500€. However, it is much less than Qt used to be.

You are pretty close, it's £350.00 + 15% VAT (UK)

See here: http://www.riverbankcomputing.co.uk/commercial/buy

Best,
Hilmar

 

[Mike Driscoll]

Here we have to select between wxPython and PyQt for a medium size project.
In this project several hundred dialogs are to be created. This work will be done by a
program generator which has to re-written.

The question now is which framework should we use.
As far as I could found is PyQt with the Qt Framework the superior choice..
Most articles I found (not all) results to PyQt.
But Qt is expensive ~ 3400€ per Developer and OS.
Since these articles are more or less old, it would be nice to hear your current opinions.

Condensed, I found this pros / cons:

Pros for Qt:
        - best framwork, well designed

"Best" in who's opinion?

        - nice GUI builders
        - faster execution

How was the execution speed measured?

Cons:
        - epensive

The others have answered this...

Pros for wxPython:
        - cheap
        - big community
Cons:
        - more layers on top of OS
        - more bugs (still valid ?)
        - slower

Again, how was the slowness measured?

Can someone tell me about his experiences with one or both frameworks ?

Thanks a lot,

Greetings
Hans

I've been using wxPython for almost three years. I can attest to there
being a good solid community behind wx that is very friendly. The
wxPython framework is built on top of C++ wxWidgets code, but as far
as I know, pyQT is built on top of the QT framework. So I'm not sure
where this idea of "more layers" for wx comes from.

I haven't messed with QT to know if it is faster or not. Hopefully
someone else can weigh in on that. I also don't know which has more
bugs. For what I've done though, I've never had a bug to deal with.
I've created a fairly involved timesheet for my company that's a
little unwieldy at the moment. I also have quite a few smaller
applications in wxPython. I like it quite a bit. All the widgets I've
ever needed are already implemented and when they aren't there, it
always seems that one of the other developers releases one.

I would recommend trying to create something small in each toolkit
(like a minimal calculator) and see which one makes the most sense to
you.

Mike

 

[Jive Dadson]

Qt has far better documentation, and it has Qt Designer. The
documentation is a big deal. I wrote a little project in wxPython, and
I spent 90% of my time just trying to find the names of member functions
and then to figure out what they do.

Why not use Qt C++? I like Python a lot. Heck, I even embedded it in a
robot controller that might have wrangled some of the wafers that went
into your computer chips. But I think I would go with C++ for a medium
size GUI project.

 

[Hans Müller]

Thanks for all your informative replies.

If I understand you right, for a commercial, closed source program I
only need a commercial PyQt license for ~ 500€ ?

As far as I know I also need a Qt Licenses which is ~3500€ per OS.

What is right ?

Thanks a lot,

Hans

 

[Hilmar Bunjes]

Thanks for all your informative replies.

If I understand you right, for a commercial, closed source program I
only need a commercial PyQt license for ~ 500€ ?

As far as I know I also need a Qt Licenses which is ~3500€ per OS.

What is right ?

Qt is under the LGPL license to you can use it for free in your
commercial program.

Best,
Hilmar

 

[Jeremy Sanders]

Thanks for all your informative replies.

If I understand you right, for a commercial, closed source program I
only need a commercial PyQt license for ~ 500€ ?

Why not ask the guys at riverbankcomputing?
http://www.riverbankcomputing.co.uk/commercial/pyqt

This page
http://www.riverbankcomputing.co.uk/software/pyqt/license

Says "The commercial version of PyQt can be used with both the commercial
and LGPL versions of Qt."

As far as I know I also need a Qt Licenses which is ~3500€ per OS.

Not true, now Qt is licensed under the LGPL.

You have to abide by the LGPL, however, which means that the user has to be
able to relink a modified form of the library, Qt, with your application
should they wish. You should check whether the LGPL is appropriate for the
way you want to ship your program.

Jeremy