Tkinter Entry widgets 'font' property (API ?) changed in Python 2.5.2 ?

[Eric Brunel]

On Wed, 06 Aug 2008 06:01:59 +0200, Atul <atul.nene at gmail.com> wrote:

> Hi,
>
> The snippet :
>
> entryFontDescr = Entry()["font"]
> print self.entryFontDescr
>
> On Windows XP it displays
>
> {MS Sans Serif} 8
>
> On Suse Linux 10.2 it used to display
>
> TkTextFont 10
>
> I upgraded to OpenSuse 11 and now it shows
>
> TkTextFont
>
> I used this snippet to obtain the default font size for an Entry
> widget. Now with an OS upgrade, my code is broken.
>
> The python version on the upgraded box is
>
> ~> python
> Python 2.5.2 (r252:60911, Jun  6 2008, 23:32:27)
> [GCC 4.3.1 20080507 (prerelease) [gcc-4_3-branch revision 135036]] on
> linux2
> Type "help", "copyright", "credits" or "license" for more information.
>>>>
>
> I dont remember the exact version of Python on the earlier Suse 10.2
> box
>
> My questions:
>
> 1. Is this not an API change ? I looked up Python's release
> documentation and didn't find any mention of the same.

Tkinter is a very thin wrapper over an embedded tcl/tk interpreter. So I  
guess the API change is caused by a tcl/tk version change, not by a Python  
one. You can check the version of the tcl/tk interpreter you're using from  
Python via:

root = Tkinter.Tk()
root.tk.eval('puts $tcl_patchLevel')
root.tk.eval('puts $tk_patchLevel')

> 2. How can I achieve what I want alternatively ?

I'd use this way:

import tkFont
entryFontDescr = Entry()["font"]
entry_font = tkFont.Font(font=entryFontDescr)
print entry_font.actual()

> Regards,
> -- Atul

HTH
-- 
python -c "print ''.join([chr(154 - ord(c)) for c in  
'U(17zX(%,5.zmz5(17l8(%,5.Z*(93-965$l7+-'])"