pythoncard-users

RE: [Pythoncard-users] TextField bug?

[John H. <kim...@ya...>]

Thanks for the reply.

"What's the platform ?"

Windows XP fp 2

"Version of wxPython"

wxPython2.5-win32-unicode-2.5.4.1-py23.exe

"and of Python  ?"

2.3.5

"Do the Pythoncard samples work OK ?"

Yes.

"How about the wxPython demos ?"

I don't see any demo ap in the wxPython directory.

I am beginning to wonder if it has to do with the
keyPress event I am trying.  This is what I am doing:

#*********
    def on_tfStudy_keyPress(self, event):
        keyCode = event.keyCode
        if keyCode==13 :
            ...some processing code...
        else:
            event.skip()
#*********

Without this event, the program doesn't crash.



Thanks,

--
John




-----Original Message-----
From: pyt...@li...
[mailto:pyt...@li...]
On Behalf Of Liam Clarke
Sent: Friday, June 03, 2005 4:57 AM
To: pyt...@li...
Subject: Re: [Pythoncard-users] TextField bug?





On 6/3/05, Alex Tweedly <al...@tw...> wrote:
kim...@ya... wrote:

>Hello list,
>
>I am having touble with textfield objects in
>Pythoncard - I am using the latest version downloaded

>from www.pythoncard.org (ver 0.81?).
>
>I have a no-brainer application and when I run it,
the
>moment I hit a key when inside a textfield, I get an
>exception in class point within _core.py, method 
>__getitem__.  The code says:
>
>    def __getitem__(self, index):
>        return self.Get()[index]
>
>and it's choking on indexing out-of-range.
>
>I've checked and the size of self.Get() is 2 and the
>value of index is 2 and that's why it crashed.
>
>As I said, this is a no-brainer ap (just a textfield
>and nothing else).  What's wrong?
>
>
>
What's the platform ?  Version of wxPython, and of
Python  ? 
Do the Pythoncard samples work OK ?
How about the wxPython demos ?

--
Alex Tweedly       http://www.tweedly.net



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Ai, please post the whole error message, is _core.py
part of the Pythoncard package? I get the feeling it's
a part of wxPython.
-- 
'There is only one basic human right, and that is to
do as you damn well please.
And with it comes the only basic human duty, to take
the consequences.' 

Re: [Pythoncard-users] TextField bug?

[John H. <kim...@ya...>]

No, the processing code has nothing with the problem. 
The point is that the mere existence of the keyPress
handling is causing the crash.  May be my handler is
not correct.  I looked at the sample Pythoncard sample
programs and didn't find any sample code on how to add
the keyPress event.

Thanks again.

> I am beginning to wonder if it has to do with the
> keyPress event I am trying.  This is what I am
doing:
> 
> #*********
>     def on_tfStudy_keyPress(self, event):
>         keyCode = event.keyCode
>         if keyCode==13 :
>             ...some processing code...
>         else:
>             event.skip()
> #*********
> 
> Without this event, the program doesn't crash.
>   
> 
Sounds like that's the culprit; dig in with your usual
debugging 
techniques to see where it is.
If you want more help - just holler. Liam's request
for the whole 
traceback is also a good idea if you want to send that
- but I think you 
now have it narrowed down to something in the "...some
processing code ..."


-- 

Re: [Pythoncard-users] TextField bug?

[Alex T. <al...@tw...>]

John Henry wrote:

>No, the processing code has nothing with the problem. 
>The point is that the mere existence of the keyPress
>handling is causing the crash.  May be my handler is
>not correct.  I looked at the sample Pythoncard sample
>programs and didn't find any sample code on how to add
>the keyPress event.
>  
>
Can you please send the complete traceback report.

Alternatively, here's a simple example that works OK for me ...

#!/usr/bin/python

"""
__version__ = "$Revision: 1.5 $"
__date__ = "$Date: 2004/04/30 16:26:12 $"
"""

rsrc = {'application':{'type':'Application',
          'name':'Template',
    'backgrounds': [
    {'type':'Background',
          'name':'bgTemplate',
          'title':'Standard Template with File->Exit menu',
          'size':(400, 300),
          'style':['resizeable'],

        'menubar': {'type':'MenuBar',
         'menus': [
             {'type':'Menu',
             'name':'menuFile',
             'label':'&File',
             'items': [
                  {'type':'MenuItem',
                   'name':'menuFileExit',
                   'label':'E&xit',
                   'command':'exit',
                  },
              ]
             },
         ]
     },
         'components': [

{'type':'TextArea',
    'name':'TextArea1',
    'position':(52, 82),
    'size':(205, 138),
    'actionBindings':{},
    'text':'TextArea1',
    },

{'type':'TextField',
    'name':'TextField1',
    'position':(10, 10),
    'size':(179, -1),
    'actionBindings':{},
    'text':'TextField1',
    },

] # end components
} # end background
] # end backgrounds
} }

from PythonCard import model

class MyBackground(model.Background):

    def on_initialize(self, event):
        # if you have any initialization
        # including sizer setup, do it here
        pass
       
    def on_TextField1_keyPress(self, event):
        print event.keyCode
        self.components.TextArea1.text = self.components.TextArea1.text 
+ "%d\n" % (event.keyCode)
        pass
       


if __name__ == '__main__':
    app = model.Application(MyBackground, None, rsrc)
    app.MainLoop()


-- 
Alex Tweedly       http://www.tweedly.net



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Re: [Pythoncard-users] TextField bug?

[<kim...@ya...>]

Alex,

Your code crashed the same way on my system.  As soon
as I hit a key at the entry field, the program
crashed.  

Here's the trace back from WingIDE:



IndexError: tuple index out of range

Traceback (innermost last):

File "C:\KeyEvent\KeyEvent.py", line 1, in ?
  #!/usr/bin/python
File "C:\KeyEvent\KeyEvent.py", line 72, in ?
  app.MainLoop()
File
"D:\Python23\Lib\site-packages\wx-2.5.4-msw-unicode\wx\_core.py",
line 5597, in MainLoop
  wx.PyApp.MainLoop(self)
File
"D:\Python23\Lib\site-packages\wx-2.5.4-msw-unicode\wx\_core.py",
line 5031, in MainLoop
  return _core_.PyApp_MainLoop(*args, **kwargs)
File
"D:\Python23\Lib\site-packages\PythonCard\components\textfield.py",
line 342, in _dispatch
  widget.Widget._dispatch(self, aWxEvent)
File
"D:\Python23\Lib\site-packages\PythonCard\widget.py",
line 365, in _dispatch
  aWxEvent = eventClassInstance.decorate(aWxEvent,
self)
File
"D:\Python23\Lib\site-packages\PythonCard\event.py",
line 341, in decorate
  aWxEvent.position = tuple(aWxEvent.GetPosition())
File
"D:\Python23\Lib\site-packages\wx-2.5.4-msw-unicode\wx\_core.py",
line 1043, in __getitem__


Regards,

--
John

Re: [Pythoncard-users] TextField bug?

[Alex T. <al...@tw...>]

kim...@ya... wrote:

>Alex,
>
>Your code crashed the same way on my system.  As soon
>as I hit a key at the entry field, the program
>crashed.  
>
>  
>
Well, I'm pretty baffled - so I really hope someone else can chime in 
with an idea.
In the meantime, I'll bash on, hoping I don't ask too many stupid 
questions or make too many stupid suggestions.


Earlier, you said:

>"Do the Pythoncard samples work OK ?"
>
>Yes.
>
Could you verify that the simpleBrowser sample works properly, including 
typing a URL into the URL field at the top ?

Looking at the code involved in the traceback, I would think tuple 
should be safe enough - so let's see what it's being called on.
Could you change lines 335-341 of PythonCard/event.py  from

> class KeyEvent(Event):
>     def decorate(self, aWxEvent, source):
>         aWxEvent = Event.decorate(self, aWxEvent, source)
>         
>         # this is basically the same block as MouseEvent.decorate
>         # but it seems wrong to have KeyEvent be a subclass of MouseEvent
>         aWxEvent.position = tuple(aWxEvent.GetPosition())

to

class KeyEvent(Event):
    def decorate(self, aWxEvent, source):
        aWxEvent = Event.decorate(self, aWxEvent, source)
       
        # this is basically the same block as MouseEvent.decorate
        # but it seems wrong to have KeyEvent be a subclass of MouseEvent
        mypoint = aWxEvent.GetPosition()
        print mypoint
        aWxEvent.position = tuple(mypoint)

and see if that tells us anything.
 If it fails one the  aWxEvent.GetPosition()   then let's print out the 
aWxEvent and see what's in it.

btw - you said you were using latest download of PythonCard, 0.81  but  
latest should be 0.82 (I think).
Could you possibly run the codeEditor (or resourceEditor) and click on 
Help/About PythonCard.... and check what it says; my system has

PythonCard version: 0.8.2
wxPython version: 2.5.3.1
Python version: 2.3.4 (#53, May 25 2004, 21:17:02) [MSC v.1200 32 bit 
(Intel)]
Platform: win32

which doesn't make it clear, but it's actually wxPython 
wx-2.5.3-msw-ansi where you have a unicode version.
(shouldn't matter - but it's the biggest difference I've seen in our 
version so far)


Thanks,

-- 
Alex Tweedly       http://www.tweedly.net



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Re: [Pythoncard-users] TextField bug?

[Bo G. <bo...@sy...>]

Alex Tweedly wrote:

> kim...@ya... wrote:
>
>> Alex,
>>
>> Your code crashed the same way on my system.  As soon
>> as I hit a key at the entry field, the program
>> crashed. 
>>  
>>
> Well, I'm pretty baffled - so I really hope someone else can chime in 
> with an idea.
> In the meantime, I'll bash on, hoping I don't ask too many stupid 
> questions or make too many stupid suggestions.
>
>
I'm running Python 2.4, wxPython 2.5.3, PCard 0.81 and despite best 
efforts I can't get either keyPress handler to crash. My suggestion, 
since it requires the least amount of work, would be to try downgrading 
to wx-2.5.3.x and see what happens. At least rule it out.

Bo

RE: [Pythoncard-users] TextField bug?

[<kim...@ya...>]

Okay, Alex,

The simpleBrowser example works.  May be it doesn't
use KeyEvent?

I replaced the KeyEvent code in pythoncard\event.py to
the code you listed and the program doesn't crash. 
It's not working like one would expect, however (may
be that's your purpose?)  When I hit a key, say
BACKSPACE,  the lower text field becomes
"TextArea18"...

Incidentally, my KeyEvent doesn't look like the one
you listed.  It's doing:

##
    def decorate(self, aWxEvent, source):
        aWxEvent = Event.decorate(self, aWxEvent,
source)
        
        # this is basically the same block as
MouseEvent.decorate
        # but it seems wrong to have KeyEvent be a
subclass of MouseEvent
        aWxEvent.position =
tuple(aWxEvent.GetPosition())
        aWxEvent.x = aWxEvent.GetX()
        aWxEvent.y = aWxEvent.GetY()
        aWxEvent.altDown = aWxEvent.AltDown()
        aWxEvent.controlDown = aWxEvent.ControlDown()
        aWxEvent.shiftDown = aWxEvent.ShiftDown()
        
        aWxEvent.keyCode = aWxEvent.GetKeyCode()
        return aWxEvent
##


From the Help function of the resource editor, I get:

PythonCard
        
PythonCard is a GUI construction kit for building
cross-platform desktop applications on Windows, Mac OS
X, and Linux, using the Python language.

PythonCard version: 0.8.1
wxPython version: 2.5.4.1
Python version: 2.3.5 (#62, Feb  8 2005, 16:23:02)
[MSC v.1200 32 bit (Intel)]
Platform: win32

I will look around and see if I can find 0.8.2.

Regarding the unicode version, so far the only problem
I found is in the multi-column control.  It was using
"String" as a class type check.  The proper check
should have been "Strings".


Thanks,


-----Original Message-----
Alex Tweedly wrote:

> kim...@ya... wrote:
>
>> Alex,
>>
>> Your code crashed the same way on my system.  As
soon
>> as I hit a key at the entry field, the program
>> crashed. 
>>  
>>
> Well, I'm pretty baffled - so I really hope someone
else can chime in with an idea.
> In the meantime, I'll bash on, hoping I don't ask
too many stupid questions or make too many stupid
suggestions.
>
>
> Earlier, you said:
>
>> "Do the Pythoncard samples work OK ?"
>>
>> Yes.
>>
> Could you verify that the simpleBrowser sample works
properly, including typing a URL into the URL field at
the top ?
>
> Looking at the code involved in the traceback, I
would think tuple should be safe enough - so let's see
what it's being called on.
> Could you change lines 335-341 of
PythonCard/event.py  from
>
>> class KeyEvent(Event):
>>     def decorate(self, aWxEvent, source):
>>         aWxEvent = Event.decorate(self, aWxEvent,
source)
>>                 # this is basically the same block
as MouseEvent.decorate
>>         # but it seems wrong to have KeyEvent be a
subclass of MouseEvent
>>         aWxEvent.position =
tuple(aWxEvent.GetPosition())
>
>
> to
>
> class KeyEvent(Event):
>    def decorate(self, aWxEvent, source):
>        aWxEvent = Event.decorate(self, aWxEvent,
source)
>              # this is basically the same block as
MouseEvent.decorate
>        # but it seems wrong to have KeyEvent be a
subclass of MouseEvent
>        mypoint = aWxEvent.GetPosition()
>        print mypoint
>        aWxEvent.position = tuple(mypoint)
>
> and see if that tells us anything.
> If it fails one the  aWxEvent.GetPosition()   then
let's print out the aWxEvent and see what's in it.
>
> btw - you said you were using latest download of
PythonCard, 0.81  but  latest should be 0.82 (I
think).
> Could you possibly run the codeEditor (or
resourceEditor) and click on Help/About PythonCard....
and check what it says; my system has
>
> PythonCard version: 0.8.2
> wxPython version: 2.5.3.1
> Python version: 2.3.4 (#53, May 25 2004, 21:17:02)
[MSC v.1200 32 bit (Intel)]
> Platform: win32
>
> which doesn't make it clear, but it's actually
wxPython wx-2.5.3-msw-ansi where you have a unicode
version.
> (shouldn't matter - but it's the biggest difference
I've seen in our version so far)
>
>
> Thanks,
>

Re: [Pythoncard-users] TextField bug?

[Alex T. <al...@tw...>]

kim...@ya... wrote:

>Okay, Alex,
>
>The simpleBrowser example works.  May be it doesn't
>use KeyEvent?
>
>  
>
It does (at least, the version I have does). It has

    def on_fldURL_keyPress(self, event):
        keyCode = event.keyCode
        target = event.target
        if keyCode == 13:
            self.on_goURL_command(None)
        else:
            event.skip()
which is why I mentioned typing a URL to it. Check if your 
sample/simpleBroswer has that too ....

>I replaced the KeyEvent code in pythoncard\event.py to
>the code you listed and the program doesn't crash. 
>It's not working like one would expect, however (may
>be that's your purpose?)  When I hit a key, say
>BACKSPACE,  the lower text field becomes
>"TextArea18"...
>  
>
Sounds right - it previously had "TextArea1" in it (from the resource 
definition), so when you hit BACKSPACE it should:
print the "point" to the console window
and then execute the keyPress handler, which says
   def on_TextField1_keyPress(self, event):
       print event.keyCode
       self.components.TextArea1.text = self.components.TextArea1.text + 
"%d\n" % (event.keyCode)

i.e. add the decimal value of the keyCode to the end of the text of 
TextArea1; BACKSPACE is ctrl-H == 8, so this is what I'd expect.  Note I 
didn't do an event.Skip() in on_TextField1_keyPress, so the key would 
not be passed through the usual processing.....

so (tentatively) I think the modified code is giving the right result.

>Incidentally, my KeyEvent doesn't look like the one
>you listed.  It's doing:
>
>##
>    def decorate(self, aWxEvent, source):
>        aWxEvent = Event.decorate(self, aWxEvent, source)
>        
>        # this is basically the same block as MouseEvent.decorate
>        # but it seems wrong to have KeyEvent be a subclass of MouseEvent
>        aWxEvent.position = tuple(aWxEvent.GetPosition())
>        aWxEvent.x = aWxEvent.GetX()
>        aWxEvent.y = aWxEvent.GetY()
>        aWxEvent.altDown = aWxEvent.AltDown()
>        aWxEvent.controlDown = aWxEvent.ControlDown()
>        aWxEvent.shiftDown = aWxEvent.ShiftDown()
>        
>        aWxEvent.keyCode = aWxEvent.GetKeyCode()
>        return aWxEvent
>##
>
>
>  
>
I can't see what's different between that and what I quoted in the 
original mail
Could you change lines 335-341 of PythonCard/event.py  from

class KeyEvent(Event):
    def decorate(self, aWxEvent, source):
        aWxEvent = Event.decorate(self, aWxEvent, source)
                # this is basically the same block as MouseEvent.decorate
        # but it seems wrong to have KeyEvent be a subclass of MouseEvent
        aWxEvent.position = tuple(aWxEvent.GetPosition()) 
(I only listed lines 335 to 341 - so apart from funny indentation of the 
comment, it looks the same as what you have).

Perhaps just the confusion of line-wrapping in email ?

>>From the Help function of the resource editor, I get:
>
>PythonCard
>        
>PythonCard is a GUI construction kit for building
>cross-platform desktop applications on Windows, Mac OS
>X, and Linux, using the Python language.
>
>PythonCard version: 0.8.1
>wxPython version: 2.5.4.1
>Python version: 2.3.5 (#62, Feb  8 2005, 16:23:02)
>[MSC v.1200 32 bit (Intel)]
>Platform: win32
>
>I will look around and see if I can find 0.8.2.
>  
>
As I said above - it looks as though it's working  for you 0.8.1, so 
unless you run into a problem, you may be able to stick with 0.8.1

(0.8.2 may be only in CVS)

>Regarding the unicode version, so far the only problem
>I found is in the multi-column control.  It was using
>"String" as a class type check.  The proper check
>should have been "Strings".
>  
>
We should make sure we get that fix incorporated - but maybe we'll let 
it sit until you have another week or two's experience, in case you run 
into anything else ....

-- 
Alex Tweedly       http://www.tweedly.net



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RE: [Pythoncard-users] TextField bug?

[<kim...@ya...>]

Sorry, Alex.  I changed the wrong file.  Let me try
the KeyEvent change again....standby

--
John

RE: [Pythoncard-users] TextField bug?

[<kim...@ya...>]

Puzzle partially solved.

The issue is that there is an genuine problem of:

IndexError: tuple index out of range

as documented before.  However, python.exe doesn't
appear to be bothered by it.  Since I am doing my
development under WingIDE, I am seeing the error.

The next question is to what to do about the error.  I
will hunt down 0.82 and see if it does better.  As
indicated, my event.py looks different from yours.

Regards,

--
John

Re: [Pythoncard-users] TextField bug?

[Alex T. <al...@tw...>]

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Re: [Pythoncard-users] TextField bug?

[Alex T. <al...@tw...>]

John Henry wrote:
<snip - thanks>

>"How about the wxPython demos ?"
>
>I don't see any demo ap in the wxPython directory.
>
>  
>
Sorry, I forgot - the wxPython demos and docs are now a separate 
download .... worth getting to see what else is in there.
But not needed, since the Pythoncard samples work OK.

>I am beginning to wonder if it has to do with the
>keyPress event I am trying.  This is what I am doing:
>
>#*********
>    def on_tfStudy_keyPress(self, event):
>        keyCode = event.keyCode
>        if keyCode==13 :
>            ...some processing code...
>        else:
>            event.skip()
>#*********
>
>Without this event, the program doesn't crash.
>  
>
Sounds like that's the culprit; dig in with your usual debugging 
techniques to see where it is.
If you want more help - just holler. Liam's request for the whole 
traceback is also a good idea if you want to send that - but I think you 
now have it narrowed down to something in the "...some processing code ..."


-- 
Alex Tweedly       http://www.tweedly.net



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