Tkinter inpput box

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November 27th, 2012, 02:41 AM

philip_95

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Tkinter inpput box

i have a thinker input box and a button next to it how do i get the value in the input box to become a vrablie to use in the programe?

November 27th, 2012, 08:35 AM

rrashkin

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Quote:

Originally Posted by philip_95

i have a thinker input box and a button next to it how do i get the value in the input box to become a vrablie to use in the programe?

If by "input box" you mean "entry widget", there is a widget option (attribute), "textvariable". If you set this to a variable name,

Code:

self.<entry widget path>=Entry(frame, width=somewidth, textvariable=varname)

,
then presumably the value in the entry widget will be (as a string) the value of varname.

I find it easier however to just grab the contents when I want them and assign the variable accordingly:

Code:

varname=self.<entry widget path>.get()

November 27th, 2012, 09:12 AM

b49P23TIvg

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Criminal that we must be careful with posts while you write careless slop.

And as rrashkin says, you didn't bother to indicate what is an "input box".

Code:

#Reference

import sys

try:
    import Tkinter as tkinter
except:
    import tkinter

top = tkinter.Tk()

t = tkinter.Text(top)
t.pack()
t.insert('1.0','The Text widget')

e = tkinter.Entry(top)
e.pack()
e.insert(0,'Entry widget')

class callback:

    '''
        Hmmm.  lamba is simple.
    '''

    keys = set('text entry'.split())

    def __init__(self,**kwargs):
        # force pretty construction.
        if not self.__class__.keys.issubset(set(kwargs)):
            raise ValueError(
                '%s(entry=EntryWidget,text=TextWidget)'%self.__class__.__name__)
        self.__dict__.update(kwargs)
        self.ouf = sys.stdout # open file ouf specifies the text and entry destination.

    def __call__(self,*args,**kwargs):
        w = self.ouf.write
        w('-'*40)
        w('\n'*2)
        w('Text box content:\n')
        # '1.0' specifies row 1, column 0, which is the start.
        w(self.text.get('1.0',tkinter.END))  ##########You're looking for this line
        w('\n')
        w('Entry box content: '+self.entry.get()) ################## and for this line also
        w('\n'*2)

tkinter.Button(top,
               text='write content to ouf',
               command=callback(text=t,entry=e)
               ).pack(side=tkinter.LEFT)
tkinter.Button(top,text='exit',command=top.destroy).pack(side=tkinter.RIGHT)

top.mainloop()

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November 27th, 2012, 04:40 PM

Dietrich

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Let's assume you want to do this:

Code:

'''tk_Entry_Button_simple.py
simple Tkinter Entry/Button example
'''

# with Python2 use 'import Tkinter as tk'
import tkinter as tk

def action():
    # get the entry value
    val = enter.get()
    # display it in the root title as a test
    root.title("name = %s" % val)


root = tk.Tk()
root.title("Enter your name")
# the entry
enter = tk.Entry(root, bg='yellow', width=50)
# the action button
button = tk.Button(root, text='Show name', command=action)

# pack widgets horizontally in the root window in order
enter.pack(side='left')
button.pack()

# start cursor in entry
enter.focus()

# start the event loop
root.mainloop()

Comments on this post

philip_95 agrees: this helped

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November 27th, 2012, 08:54 PM

Brewzer

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Quote:

That is pretty cool! What if I wanted to calculate the monthly payment on an auto loan?

Code:

'Monthly Payment'

November 29th, 2012, 02:43 AM

philip_95

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yes i mean entry box
thanks i try some of them

November 30th, 2012, 04:51 AM

philip_95

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Quote:

Originally Posted by Dietrich

Let's assume you want to do this:

Code:

'''tk_Entry_Button_simple.py
simple Tkinter Entry/Button example
'''

# with Python2 use 'import Tkinter as tk'
import tkinter as tk

def action():
    # get the entry value
    val = enter.get()
    # display it in the root title as a test
    root.title("name = %s" % val)


root = tk.Tk()
root.title("Enter your name")
# the entry
enter = tk.Entry(root, bg='yellow', width=50)
# the action button
button = tk.Button(root, text='Show name', command=action)

# pack widgets horizontally in the root window in order
enter.pack(side='left')
button.pack()

# start cursor in entry
enter.focus()

# start the event loop
root.mainloop()

Thanks this helped

Tkinter inpput box

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