Any suggestions on good jython online tutorials?

[Marcos Maia]

Hi,

I'd like to know jython better and I'd like suggestions on good on line resources and tutorials on it. Any suggestions?

tx in advance.

[Zenikko Sugiarto]

Couldn't find one.

I'm writing a swing application using Jython on eclipse, took me about 20 minute to get used to it. It's very easy.

I'll probably write one once I am finished with my apps - it's an application to process my online banking statements. I'm sick of having to copy paste the csv files into excel every month. But it's pretty much

1. get eclipse + pydev
2. configure pydev, add jython path etc
3. in your jython code:

try:
    import java
    from javax.swing import *
    from java.awt import *
    # or other java import
except:
    pass

After that, you can just do...

apanel = Jpanel()
apanel.setLayoutManager(BorderLayout())
apanel.(ctrl+space)

and the good ol java suggestion pops up. You don't get all the nice feature of the java editor like ctrl+shift+o (manage imports). Also due to its weak typing nature, ctrl+space on a class doesn't automatically give you a list of your private attributes.

My advice is, get used to it. It's PyDev, not JavaDev.

So in 15-20 minutes, downloading Jython, googling around, mucking around, etc I ended up with a very simple Jython-Swing skeleton code like this:

try:
    import java
    from javax.swing import *
    from java.awt import *
except:
    pass
 
 
class SummaryPanel(JPanel):
    def __init__(self):
        
        pass
 
class TransactionPanel(JPanel):
    def __init__(self):
        pass
 
class MainPanel(JPanel):
    """
    The main panel, containing other panel
    """
    
    def __init__(self):
        print "main panel initialise"
        # declarations
        self.panels   = {}
        self.render()
    
    def addPanel(self, name, panelInstance):
        if name in self.panels:
            self.panels[name] = None
        self.panels[name] = panelInstance
                
    def render(self):
        """
        Repaint or redraw
        """
        self.removeAll();
        self.setLayout(BorderLayout())
        self.mainTabs = JTabbedPane()
        for panelName in self.panels: 
            self.mainTabs.add(panelName, self.panels[panelName])
        self.add(self.mainTabs, BorderLayout.CENTER)
                  
        
class ZFinanceUI:
    """
    Jython UI, works with zfinance engine
    """
    def __init__(self):
                 
        # Create application window, put display into it                        
        jframe = JFrame("This is a test")                                               
        
        # Set window size and make it visible                                   
        jframe.setSize(300, 300)
        jframe.setVisible(True)   
        jframe.defaultCloseOperation=JFrame.EXIT_ON_CLOSE
                
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel")
        UIManager.getLookAndFeelDefaults().put("defaultFont",Font("Verdana", Font.TRUETYPE_FONT, 12));
                
        # TransactionPanel
        transactionPanel = TransactionPanel()
        
        # summaryPanel
        summaryPanel = SummaryPanel()
        
        mainpanel = MainPanel()
        mainpanel.addPanel("summary", summaryPanel)
        mainpanel.addPanel("transaction", transactionPanel)
        mainpanel.render()
        
        jframe.add(mainpanel)
        jframe.validate()
 
#Instantiate a ZFinanceGUI
ZFinanceUI()  
 

Not my most elegant code, but hey it's a start, and I do plan to refine it over time.
[ September 03, 2008: Message edited by: Zenikko Sugiarto ]

[Andrew Monkhouse]

Marcos,

Please check your private messages for an important administrative matter.

Thanks, Andrew