[Python]StringVar() Class String processing Post: 302572392

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Top Forums Shell Programming and Scripting [Python]StringVar() Class String processing Post 302572392 by animesharma on Wednesday 9th of November 2011 11:16:34 PM

11-10-2011

Registered User

[Python]StringVar() Class String processing

I have a requirement where I collect inputs from entry widget in gui(via variables a,b,c) and then output a string like this: -a a -b b -c c.

Hence if I have given a=1 b=2 c=3, The output string is --> -a 1 -b 2 -c 3
or if I have given a=1 b=2 (c left blank) then the output is --> -a 1 -b 2

As of now, I am able to get the values a,b,c in a stringvar class variable, but I am struggling to generate the
desired output string

Code:

from tkinter import *
from tkinter import ttk

def calculate(*args):
    A=str(a.get())  
    B=str(b.get()) 
    C=str(c.get())

    #out.set(A+" "+B+" "+C)





root = Tk()
root.title("Sample nruntest GUI")
mainframe = ttk.Frame(root)
mainframe.grid(column=0,row=1)
mainframe.columnconfigure(0,weight=1)
mainframe.rowconfigure(0,weight=1)
mainframe['relief'] = 'groove'
mainframe['padding'] = (5,5)
mainframe['borderwidth'] = 2
#
a=StringVar()
b=StringVar()
c=StringVar()
out=StringVar()
#
al=ttk.Label(root,text="A").grid(column=0,row=0,sticky=W)
bl=ttk.Label(root,text="B").grid(column=0,row=1,sticky=W)
cl=ttk.Label(root,text="C").grid(column=0,row=2,sticky=W)
out_l=ttk.Label(root,text="Out").grid(column=0,row=3,sticky=W)
ae=ttk.Entry(root,width=10,textvariable=a).grid(column=1,row=0,sticky=E)
be=ttk.Entry(root,width=10,textvariable=b).grid(column=1,row=1,sticky=E)
ce=ttk.Entry(root,width=10,textvariable=c).grid(column=1,row=2,sticky=E)
out_e=ttk.Entry(root,width=10,textvariable=out).grid(column=1,row=3,sticky=E)

button = ttk.Button(root,text="hello",command=calculate).grid(column=0,row=4)
root.mainloop()

Last edited by animesharma; 11-10-2011 at 12:29 AM..

animesharma

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LEARN ABOUT CENTOS

ttk::sizegrip

ttk::sizegrip(n)						 Tk Themed Widget						  ttk::sizegrip(n)

__________________________________________________________________________________________________________________________________________________

NAME

       ttk::sizegrip - Bottom-right corner resize widget

SYNOPSIS

       ttk::sizegrip pathName ?options?
_________________________________________________________________

DESCRIPTION

       A  ttk::sizegrip  widget  (also	known as a grow box) allows the user to resize the containing toplevel window by pressing and dragging the
       grip.

STANDARD OPTIONS

       -class		     -cursor		  -state
       -style		     -takefocus

       See the ttk_widget manual entry for details on the standard options.

WIDGET COMMAND

       Sizegrip widgets support the standard cget, configure, identify, instate, and state methods.  No other widget methods are used.

PLATFORM-SPECIFIC NOTES
       On Mac OSX, toplevel windows automatically include a built-in size grip by default.  Adding a ttk::sizegrip there is  harmless,	since  the
       built-in grip will just mask the widget.

EXAMPLES

       Using pack:
	      pack [ttk::frame $top.statusbar] -side bottom -fill x
	      pack [ttk::sizegrip $top.statusbar.grip] -side right -anchor se

       Using grid:
	      grid [ttk::sizegrip $top.statusbar.grip] 
		  -row $lastRow -column $lastColumn -sticky se
	      # ... optional: add vertical scrollbar in $lastColumn,
	      # ... optional: add horizontal scrollbar in $lastRow

BUGS

       If  the containing toplevel's position was specified relative to the right or bottom of the screen (e.g., "wm geometry ... wxh-x-y" instead
       of "wm geometry ... wxh+x+y"), the sizegrip widget will not resize the window.

       ttk::sizegrip widgets only support "southeast" resizing.

SEE ALSO

       ttk::widget(n)

KEYWORDS

       widget, sizegrip, grow box

Tk									8.5							  ttk::sizegrip(n)