I'm going around in circles trying to serialize some app configuration
data in my Tkinter app via pickle, and I'd appreciate some help.
I set various app configurations via checkboxes and StringVar().
Sometimes the value of one of the checkboxes is lost and when I try to
print the value, I get PY_VAR#2 instead. Here's a relevant snippet
setting the values:
self.copytext= StringVar()
self.copytext.set(self.defaults['copytext'])
self.whoischeck = Tile.Checkbutton(self.whoisframe,
variable=self.whois, text='Display Raw Whois Output')
And here's the snippet that retrieves the value:
self.defaults['copytext'] = self.copytext
Using this call, printing the value of self.defaults['copytext'] results
in PY_VAR#2, which doesn't actually retain the value of the var I'm
setting (1 or 0). It also results in a error when I try to serialize the
data, because pickle can't handle this type of data:
Can't pickle 'tkapp' object: <tkapp object at 0x01FCB090>
I can actually get the correct value if I change one call as follows:
self.defaults['copytext'] = self.copytext.get()
But then, trying to pickle this value, I get this error:
'str' object has no attribute 'get'
What's the right way in Tkinter to get the value of a StringVar() from a
checkbutton, and then serialize the value via pickle?
Sometimes I can get this to work, but I don't understand the underlying
dynamics of it; the intersection of Python objects and Tcl variables
gives me headaches. I am especially unclear why I get PY_VAR rather than
the value in some instances, but not others.
Thanks,
Kevin
--
Kevin Walzer
Code by Kevin/Mobile Code by Kevin
http://www.codebykevin.com
http://www.wtmobilesoftware.com
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