Ah, very subtle. Thanks. That worked, but I got shelled by:
Program output (22, 33 are what I entered):
apply
22
33
Traceback (most recent call last):
File
"C:/Sandia_Meteors/Sentinel_Development/Development_Sentuser-Utilities/sentuser/NewSentDlg.py",
line 35, in <module>
dialog = DialogPrototype(root)
File "C:\Python25\lib\lib-tk\tkSimpleDialog.py", line 69, in __init__
self.wait_visibility() # window needs to be visible for the grab
File "C:\Python25\lib\lib-tk\Tkinter.py", line 415, in wait_visibility
self.tk.call('tkwait', 'visibility', window._w)
TclError: window ".60529560" was deleted before its visibility changed
Martin Walsh wrote:
Wayne Watson wrote:
The program below is derived from an example in Grayson for showing how
one might a dialog for entering passwords. The structure seems just like
the original, down to the use of self, Label and Entry plus . Yet the
print "here" statement produces:
here None <type 'NoneType'>
I'm missing something. The NoneType causes the print of the self.lat to
fail with get().
The original returns something from the corresponding body function, but
taking it out does nothing in either program. The original program is
posted above under "Modifying Grayson's Example 5_14".
# Derived from Grayson 5_14.py
from Tkinter import *
from tkSimpleDialog import Dialog
import tkSimpleDialog
import tkMessageBox
#import Pmw
class DialogPrototype(Dialog):
def body(self, master):
self.title("Enter Site Data")
Label(master, text='Latitude:').grid(row=0, sticky=W)
self.lat=Entry(master, width=12).grid(row=0, column=1)
This is where you diverge from the Grayson example. What you're saying
is that self.lat should be set to the result of Entry(...).grid(...)
which is always None, presumably. What I think you want is self.lat to
be a reference to the Entry widget itself. Try this,
self.lat = Entry(master, width=12)
self.lat.grid(row=0, column=1)
Label(master, text='Longitude:').grid(row=0, column=2)
self.long=Entry(master, width=12).grid(row=0, column=3)
.... and,
self.long = Entry(master, width=12)
self.long.grid(row=0, column=3)
print "here", self.long,type(self.long)
return
def apply(self):
print "apply"
print self.lat.get()
print self.long.get()
print "setting"
lat=1.0
long=0.0
Is that the way you indented the above, really? I suppose it could be
intentional, but probably not.
root = Tk()
root.withdraw()
dialog = DialogPrototype(root)
HTH,
Marty
_______________________________________________
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
--
Wayne Watson (Watson Adventures, Prop., Nevada City, CA)
(121.01 Deg. W, 39.26 Deg. N) GMT-8 hr std. time)
“Life is one damn thing after another."
-- Mark Twain
|
