Cross-platform gui toolkit for deploying Python applications

from javax.swing import *

frame = JFrame("Hello Jython")
label = JLabel("Hello Jython!", JLabel.CENTER)
frame.add(label)
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)
frame.setSize(300, 300)
frame.show()

from javax.swing import *

frame = JFrame("Hello Jython")
label = JLabel("Hello Jython!", JLabel.CENTER)
frame.add(label)
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)
frame.setSize(300, 300)
frame.show()

from __future__ import nested_scopes
import java.lang as lang
import java.util as util
import java.awt as awt
import javax.swing as swing

class Particle:

    def __init__(self,initX,initY):
    self.x = initX
    self.y = initY
    self.rng = util.Random()

    def move(self):
    self.x += self.rng.nextInt(10) - 5
    self.y += self.rng.nextInt(20) - 10

    def draw(self,g2):
    g2.drawRect(self.x,self.y,10,10)

class ParticleCanvas(awt.Canvas):

    def __init__(self,newSize):
    awt.Canvas.__init__(self,size=(newSize,newSize))

    def paint(self,g2):
    for p in self.particles:
        p.draw(g2)

class ParticleApplet(swing.JApplet):

    def init(self):
    self.canvas = ParticleCanvas(self.getWidth())
    self.contentPane.add(self.canvas)

    def start(self):
    n = 10
    particles = []
    for i in range(n):
        particles.append(Particle(150,150))
    self.canvas.particles = particles

    self.threads = []
    for i in range(n):
        self.threads.append(self.makeThread(particles[i]))
        self.threads[i].start()

    def makeThread(self,p):

    class MyRunnable(lang.Runnable):
        def run(this):
        try:
            while 1:
            p.move()
            self.canvas.repaint()
            lang.Thread.sleep(100)
        except lang.InterruptedException:
            return

    return lang.Thread(MyRunnable())