Version 3 GUI Toolkits

[toadzky]

I use python for various personal projects and hobby stuff. I do mostly command line stuff, just cuz I don't need the gui for a lot of it.

I would like to start moving on to GUIs, but I have run into a problem. I started with Python v3. All the toolkits, WYSIWYG designers, etc are all for version 2.

Is there a toolkit and (hopefully) a WYSIWYG designer for Python 3?

[snippsat]

For python 3 there is PyQt
Comes with Qt designer

Look at Ene Uran post about qt-designer.
http://www.daniweb.com/forums/thread191210-10.html

[ultimatebuster]

You cannot distribute Qt software on Windows without a license.

[vegaseat]

You cannot distribute Qt software on Windows without a license.

Really meant for commercial software only.

[vegaseat]

The problem with designer programs is that they create rather bloated code.

Most seasoned GUI programmers prefer a template approach. The Tkinter GUI toolkit has been updated with the release of Python version 3.1 and now contains the extra widgets that come with the tile extension ttk.

[toadzky]

I've never really done GUIs in python. I usually use C# .NET for GUI projects. What do you mean by a template approach? Most of my programming experience is command line based with C++ and Python.

[vegaseat]

For instance, if you had to write a program that asks for two values from the user to solve a mathematical equation, you could adopt this Tkinter program as a basic template. Simply change some of the text and the equation and you are done ...

# tk_template_2entry_3label_1button1.py
# a Tkinter template to solve a mathematical equation
# requesting two values from the user
# uses 2 Entry widgets, 3 Label widgets and 1 Button widget

try:
    # Python2
    import Tkinter as tk
except ImportError:
    # Python3
    import tkinter as tk

def calculate():
    """ calculate the resistance of two resistors in parallel """
    try:
        r1 = float(enter1.get())
        r2 = float(enter2.get())
        if r1 + r2 > 0:
            rp = (r1 * r2) / (r1 + r2)
            label3.config(text='Parallel resistance = ' + str(rp))
        else:
            label3.config(text='division by zero error')
    except ValueError:
        label3.config(text='Enter numeric values for r1 and r2')

def setfocus2(event):
    enter2.focus_set()

        
# create root window
root = tk.Tk()

# create all the components
label1 = tk.Label(root, text='Enter value of resistor1:', width=28)
enter1 = tk.Entry(root, bg='yellow')
label2 = tk.Label(root, text='Enter value of resistor2:')
enter2 = tk.Entry(root, bg='yellow')
btn1 = tk.Button(root, text='Calculate', command=calculate)
label3 = tk.Label(root, text='', bg='green')
# pack the root window in that order
label1.pack(side='top', fill='x')
enter1.pack(side='top', fill='x')
label2.pack(side='top', fill='x')
enter2.pack(side='top', fill='x')
btn1.pack(side='top')
label3.pack(side='top', fill='x')

# cursor in enter1
enter1.focus()
# return key in enter1 sets focus to enter2
enter1.bind("<Return>", func=setfocus2)

# start event loop and program
root.mainloop()