[Tkinter-discuss] Fwd: WxPython -> Tkinter
Guilherme Polo
ggpolo at gmail.com
Sun Nov 2 17:40:13 CET 2008
On Sun, Nov 2, 2008 at 12:34 PM, Olrik Lenstra <o.lenstra at gmail.com> wrote:
> I would like to thank you already for all the help you've given me, it
> is really appreciated :)
You are welcome.
> I decided to update to Python2.6 instead of using the tile pack. My
> application now shows the GUI again.
> So I added the code you gave me to prevent the window from hanging
> once I execute my scan.
> I get the following Traceback:
>
> D:\Documents\OLPrograms\TroubleShooting Olrik\sourcecode\TSO(source)>python TSO.
> pyw
> Exception in Tkinter callback
> Traceback (most recent call last):
> File "D:\Python26\lib\lib-tk\Tkinter.py", line 1410, in __call__
> return self.func(*args)
> File "D:\Documents\OLPrograms\TroubleShooting Olrik\sourcecode\TSO(source)\TSO
> main.pyw", line 29, in OnScan
> TSOscn.Scan(root, status)
> File "D:\Documents\OLPrograms\TroubleShooting Olrik\sourcecode\TSO(source)\TSO
> scn.pyw", line 23, in Scan
> TSOex.safe_yield(Frame, True)
> File "D:\Documents\OLPrograms\TroubleShooting Olrik\sourcecode\TSO(source)\TSO
> ex.pyw", line 75, in safe_yield
> window_disabler(window)
> File "D:\Documents\OLPrograms\TroubleShooting Olrik\sourcecode\TSO(source)\TSO
> ex.pyw", line 90, in window_disabler
> if widget.instate(['!disabled']):
> AttributeError: Button instance has no attribute 'instate'
>
That is because Button is not a ttk.Button, but a "normal"
Tkinter.Button. I didn't know before you would be using windows, but
since this is the case, you may try substituting the use of instate
and state calls (that are available only for ttk widgets) by the use
of widget.wm_attributes('-disabled', 1),
widget.wm_attributes('-disabled', 0) and
widget.wm_attributes('-disabled'). I will be able to test it here
later since my new pc arrived with a windows vista.
> D:\Documents\OLPrograms\TroubleShooting Olrik\sourcecode\TSO(source)>
>
> I don't know if it makes a difference, But I think you should know
> that I use different files that import other applications (made by me)
> Example:
>
> TSO.pyw is the main script, this looks if the very first argument is
> "TSO.pyw", if it is, run "TSOmain.TSO()"
> TSOmain.pyw is the GUI and the GUI only, from there it calls other files etc.
> I hope that wasn't too confusing.
>
> Thanks again, I really appreciate it.
>
> Regards,
> Olrik
>
> 2008/11/2 Guilherme Polo <ggpolo at gmail.com>:
>> On Sun, Nov 2, 2008 at 10:34 AM, Olrik Lenstra <o.lenstra at gmail.com> wrote:
>>> Hmm, I'm a bit stumped.
>>> I installed the ttk module and tried applying the code.
>>> However when I ran my code it gave me an error.
>>> I thought I might have left a small typo in or something and removed
>>> the code to check my own.
>>>
>>> After I removed the ttk import and code it wouldn't even run my own code again.
>>> Below is the Traceback:
>>>
>>> C:\Users\Olrik Lenstra\Desktop\TroubleShooting Olrik>python TSO.pyw
>>> Traceback (most recent call last):
>>> File "TSO.pyw", line 24, in <module>
>>> import TSOmain
>>> File "C:\Users\Olrik Lenstra\Desktop\TroubleShooting Olrik\TSOmain.pyw", line
>>> 79, in <module>
>>> TSO()
>>> File "C:\Users\Olrik Lenstra\Desktop\TroubleShooting Olrik\TSOmain.pyw", line
>>> 37, in TSO
>>> root = Tk.Tk()
>>> File "D:\Python25\lib\lib-tk\Tkinter.py", line 1638, in __init__
>>> self._loadtk()
>>> File "D:\Python25\lib\site-packages\ttk.py", line 50, in _wrapper
>>> self.tk.eval('package require tile') # TclError may be raised here
>>> _tkinter.TclError: can't find package tile
>>>
>>
>> You don't have tile installed neither was your tkinter compiled
>> against tcl/tk 8.5.
>> Python 2.6 already brings tcl/tk 8.5 and tkinter compiled against them.
>> Another option is to download tile from:
>> http://sourceforge.net/project/showfiles.php?group_id=11464&package_id=107795
>> (get the tile082.zip so you have to do nothing at all). Then unpack
>> that somewhere. Then you have to set the environment variable
>> TILE_LIBRARY to the directory where this was unpacked, then you should
>> be able to run the program with ttk.
>> You could set this environment var inside your app too:
>>
>> import os
>> os.environ['TILE_LIBRARY'] = 'x:/unpacked/tile/here'
>>
>> import ttk
>>
>> ....
>>
>>> C:\Users\Olrik Lenstra\Desktop\TroubleShooting Olrik>
>>>
>>>
>>> Regards,
>>> Olrik
>>>
>>> 2008/10/29 Olrik Lenstra <o.lenstra at gmail.com>:
>>>> So that means that you will use a ttk frame instead of the Tkinter.Frame?
>>>> I'll see if I can get this working once I get home. (my program is on my
>>>> Desktop and I just do some testing on my laptop)
>>>>
>>>> Thanks a lot so far!
>>>> Regards,
>>>> Olrik
>>>>
>>>> 2008/10/29 Guilherme Polo <ggpolo at gmail.com>
>>>>>
>>>>> On 10/29/08, Olrik Lenstra <o.lenstra at gmail.com> wrote:
>>>>> > I see, Thanks a lot, I really don't wish to bother you any further, but
>>>>> > here's my current situation.
>>>>> > I am still a beginning programmer and I am not entirely sure where to
>>>>> > put
>>>>> > this code exactly.
>>>>> >
>>>>> > How would I go about using this code?
>>>>> >
>>>>>
>>>>> It should be very similar to what you are already doing in wx.
>>>>>
>>>>> But, you would need to layout your toplevel (the one that is created
>>>>> when you call Tkinter.Tk()) as this:
>>>>>
>>>>> There would be a ttk.Frame that would hold all the other widgets,
>>>>> which should be all ttk widgets according to this sample. Then you
>>>>> would call safe_yield(frame, True) in the same situations you would in
>>>>> wx. Now it remains to check if there is the same need for this in tk
>>>>> as there is in wx.
>>>>>
>>>>> Finally, a sample way to layout the widgets:
>>>>>
>>>>> root = Tkinter.Tk()
>>>>> frame = ttk.Frame(root)
>>>>> btn1 = ttk.Button(frame, text="Button 1")
>>>>> ...
>>>>> ... some time later:
>>>>> safe_yield(frame, True)
>>>>> ...
>>>>>
>>>>> > Thank you so much in advance.
>>>>> > Regards,
>>>>> > Olrik
>>>>> >
>>>>> > 2008/10/29 Guilherme Polo <ggpolo at gmail.com>
>>>>> >
>>>>> > >
>>>>> > >
>>>>> > >
>>>>> > > ---------- Forwarded message ----------
>>>>> > > From: Guilherme Polo <ggpolo at gmail.com>
>>>>> > > Date: Oct 29, 2008 9:16 AM
>>>>> > > Subject: Re: [Tkinter-discuss] WxPython -> Tkinter
>>>>> > > To: Olrik Lenstra <o.lenstra at gmail.com>
>>>>> > > Cc: python-list at python.org
>>>>> > >
>>>>> > >
>>>>> > > On 10/29/08, Olrik Lenstra <o.lenstra at gmail.com> wrote:
>>>>> > > > Hello everyone,
>>>>> > > >
>>>>> > > > A while ago I joined the Tutor mailing list, and they helped me out
>>>>> > with a
>>>>> > > > question regarding wxPython.
>>>>> > > > Now however, I have tried a program in Tkinter and I would like to
>>>>> > > see
>>>>> > if
>>>>> > > > there is a similar command to "wx.SafeYield(self, True)".
>>>>> > >
>>>>> > >
>>>>> > > It will be a combination of commands, not a single one. Initially I
>>>>> > > considered this as "probably without solution", since tcl acquired a
>>>>> > > yield command just in the 8.6a3 release, but then I looked at
>>>>> > > wx.SafeYield code and apparently it is possible to replicate it.
>>>>> > >
>>>>> > > Here is an initial cut, it is very possible to contain something not
>>>>> > > equivalent to wx.SafeYield (besides it could be improved):
>>>>> > >
>>>>> > >
>>>>> > > import ttk
>>>>> > >
>>>>> > > inside_tkyield = False
>>>>> > > disabled_wins = {}
>>>>> > >
>>>>> > > def safe_yield(window, only_if_needed=False):
>>>>> > > window_disabler(window)
>>>>> > >
>>>>> > > try:
>>>>> > > return tk_yield(window, only_if_needed)
>>>>> > > finally:
>>>>> > > for widget, flags in disabled_wins.iteritems():
>>>>> > > ttk.Widget.state(widget, flags)
>>>>> > > disabled_wins.clear()
>>>>> > >
>>>>> > >
>>>>> > > def window_disabler(window):
>>>>> > > widgets = window.children.values()
>>>>> > > widgets.append(window)
>>>>> > >
>>>>> > > for widget in widgets:
>>>>> > > if widget.instate(['!disabled']):
>>>>> > > prev_flags = widget.state(['disabled'])
>>>>> > > disabled_wins[widget] = prev_flags
>>>>> > >
>>>>> > >
>>>>> > > def tk_yield(window, only_if_needed=False):
>>>>> > > # wx implements this differently based on the backend it is using
>>>>> > > global inside_tkyield
>>>>> > > if inside_tkyield:
>>>>> > > if not only_if_needed:
>>>>> > > raise RuntimeError("safe_yield called recursively")
>>>>> > >
>>>>> > > return False
>>>>> > >
>>>>> > > inside_tkyield = True;
>>>>> > >
>>>>> > > window.update()
>>>>> > > window.update_idletasks()
>>>>> > >
>>>>> > > inside_tkyield = False;
>>>>> > >
>>>>> > > return True
>>>>> > >
>>>>> > >
>>>>> > > Note that this depends on ttk widgets
>>>>> > > (http://pypi.python.org/pypi/pyttk) since it uses
>>>>> > widget.state to
>>>>> > > disable and reenable the widgets. On windows the "wm" command
>>>>> > > supports
>>>>> > > disabling the entire window, so it is easier if you can use it.
>>>>> > >
>>>>> > > [Forwarded because I sent to the wrong list first time]
>>>>> > >
>>>>> > >
>>>>> > > > Below is a copy of the message to the tutor list.
>>>>> > > >
>>>>> > > > > Dear Mailing list,
>>>>> > > > >
>>>>> > > > > a while ago a few of you helped me solve an issue I had with a
>>>>> > > GUI /
>>>>> > scan
>>>>> > > > > program that I made.
>>>>> > > > > The problem was that when I tried to move the frame it would hang
>>>>> > until
>>>>> > > > the
>>>>> > > > > scan was finished.
>>>>> > > > > To solve this I had to add "wx.SafeYield(self, True)" to the scan
>>>>> > > and
>>>>> > the
>>>>> > > > > GUI wouldn't hang any more.
>>>>> > > > > Now I have redone the program and have written it with Tkinter
>>>>> > instead of
>>>>> > > > > WxPython.
>>>>> > > > >
>>>>> > > > > So is there a similar command for Tkinter as there is for
>>>>> > > WxPython?
>>>>> > > > >
>>>>> > > > > Thanks in advance.
>>>>> > > > > Regards,
>>>>> > > > > Olrik
>>>>> > > > >
>>>>> > > >
>>>>> > >
>>>>> > > > _______________________________________________
>>>>> > > > Tkinter-discuss mailing list
>>>>> > > > Tkinter-discuss at python.org
>>>>> > > >
>>>>> > http://mail.python.org/mailman/listinfo/tkinter-discuss
>>>>> > > >
>>>>> > > >
>>>>> > >
>>>>> > >
>>>>> > >
>>>>> > > --
>>>>> > > -- Guilherme H. Polo Goncalves
>>>>> > >
>>>>> > >
>>>>> > > --
>>>>> > > -- Guilherme H. Polo Goncalves
>>>>> > >
>>>>> > >
>>>>> > >
>>>>> > > _______________________________________________
>>>>> > > Tkinter-discuss mailing list
>>>>> > > Tkinter-discuss at python.org
>>>>> > >
>>>>> > http://mail.python.org/mailman/listinfo/tkinter-discuss
>>>>> > >
>>>>> >
>>>>> >
>>>>>
>>>>>
>>>>> --
>>>>> -- Guilherme H. Polo Goncalves
>>>>
>>>>
>>>
>>
>>
>>
>> --
>> -- Guilherme H. Polo Goncalves
>>
>
--
-- Guilherme H. Polo Goncalves
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