[Pythonmac-SIG] Double-clickable wxpython application?

[Christopher Barker]

Kevin Horton wrote:
> I have two scripts - the  
> program is started by running the GUI script, which calls wx, and  
> sets up the whole GUI.  This script imports another script, which  
> holds all the functions that perform the calculations that are the  
> whole purpose of this application.  The calculation script reads  
> several data files, which live in the same directory as the two  
> scripts.  I was using relative paths when opening those data files.   
> That worked fine if I started the script from the command line.  But,  
> for a reason that I don't yet understand, when using AppleScript, or  
> Automator, I needed to use os.chdir() to point to the correct  
> directory before loading the data files.

yes -- where data files lie is always an issue, and , for the most part, 
the "current directory" concept really makes no sense with a program 
started from the GUI.

For what it's worth, py2app always sets the current dir to some sensible 
place. I don't remember where off the top of my head, but it's the same 
place that it puts "data files", which makes things like this easy.

> The failure to load the data files did not trigger a traceback, or a  
> Console message when the script was started with AppleScript.

Th could be a function of how you initialize your wx.App --

MyApp = wx.App()

defaults to having wx capture the stdout and stderr  and try to dump it 
to a Window. If your app crashes immediately the errors then get 
dropped. Try"

MyApp - wx.App(False)

By the way, I think the default has been changed in the latest version 
-- this is the source of a LOT of questions on the wxPython list.

>  I had  
> to resort to putting write statements in my script to log items of  
> interest to a debug file before I could confirm the cause of the  
> problem.

wx can also re-direct all output to a file, but I don't remember the 
syntax of that one off the top of me head, something like: 
wx.App(redirect=filename).


> py2app is not available at the link provided on its download page

Your best bet is to get it with easy-install now:

easy_install py2app

should do it.

http://peak.telecommunity.com/DevCenter/EasyInstall
 > I did try py2app from the Fink
> distribution.

I wouldn't expect that to work at all -- they really have one? strange.

-Chris