tkinter creating browse buttons in for loop & passing directory name to data entry widget

Question

I'm stuck. I have 15 labels, 15 data entry widgets and 15 browse buttons created in a loop.

When the user clicks on one of the browse buttons, I would like to update the corresponding data entry widget with either the directory name, or filename. Everything is working okay with the exception of the buttons. Whenever I select the directory or filename from any of the button widgets, only the last data entry gets populated, never the corresponding widget.

The code should work as described. The problem is that selecting either of the 1st 2 browse buttons will only update the last data entry widget, not the widget next to the button.

(The computer I'm using doesn't have network connectivity, so I had to type it into my phone's tiny screen).

import sys, os, shuttle, time
from tkinter import *
from tkinter import ttk
from tkinter import filedialog as fd

class MyClass:
    def __init__(self, root):
        #title
        root.title('My Title' )
        #mainframe
        mainframe = ttk.Frame(root, padding='1 3 12 12')
        mainframe.grid(column=0,row=0, sticky=(N,W,E,S))
        root.columnconfigure(0, weight=1)
        root.rowconfigure(0, weight=1)
        #Setup notebook
        Mytab=ttk.Notebook(mainframe)
        Mytab.grid(column=0,row=0, sticky=(N,W,E,S))
        #SET Frames for each tab
        SettingsFrame=ttk.Frame( Mytab,padding='1 1 12 12')
        SettingsFrame.grid( column=3, row=20, sticky=(N,W,E,S))

        #Add frames
        Mytab.add(SettingsFrame, text='Dir paths')

        #List vars for labels, dir, files, & cmd
        TheLabels = ['Dir1', 'File1', 'Dir2']
        TheDataEntry = ['D:/Dir1','D:/DirX/Filename1','D:/Dir2']
        TheCmds = ['Open_folder','Open_file','Open_folder']
        
        ttk.Label(SettingsFrame, text='Default DIR names: ').grid(column=1, row=1, sticky=W)
        self.PHBrowseOpen = PhotoImage( file = r'C:\pic\mypic.png' )

        myindex=2
        i=0
        self.mystringVars = []
        self.myEntries = []
        self.myButtons = []

        for labs, des, cmds in zip(TheLabels, TheDataEntry, TheCmds):
            ttk.Label( SettingsFrame, text=labs ).grid( column=1, row=myindex, sticky=W)
            self.myvar = StringVar()
            self.myvar.set( os.path.normpath(des))
            mystringVars.append( self.myvar )
            self.entry = ttk.Entry( SettingsFrame, width=72, textvariable=self.myvar )
            self.entry.grid(column=2, row=myindex, sticky=(W,E))
            self.myEntries.append(self.entry)

            if cmds == 'Open_folder':
                self.myButton.append( ttk.Button( SettingsFrame, text='Browse', image=self.PHBrowseOpen, command=lambda i=i: self.Open_folder(i)))
            else:
                
self.myButton.append( ttk.Button( SettingsFrame, text='Browse', image=self.PHBrowseOpen, command=lambda i=i: self.Open_txt_file(i)))

            self.myButton[i].grid( column=3, row=myindex, sticky=E)
            myindex +=1
            i+=1

                
        #open folder
        def Open_folder( self, myNum ):
            d = os.path.normpath( fd.askdirectory() )
            for i in range( len( self.myentries )):
                if i== myNum:
                    self.myvar.set( os.path.normpath(d) )

        #open file
        def Open_file( self, myNum ):
            typefaces = (('text', '*.txt'),('JPEG','*.jpg'))
            d = os.path.normpath( f.askopenfilename(filetypes=typefiles) )
            for i in range( len( self.myentries )):
                if i== myNum:
                    self.myvar.set( os.path.normpath(f) )

Does this answer your question? https://stackoverflow.com/questions/10865116/ — Bryan Oakley, Sep 19 '22 at 17:32
No it doesn't answer my question. I can print the value, I can print the correct data entry widget. But the correct data entry widget never gets updated. Only the last data entry widget gets updated. — user20034454, Sep 20 '22 at 10:08

score 1 · Answer 1 · edited Mar 14 '23 at 11:32

1

I knew the answer to my question would be embarrassingly simple. I was trying to set the wrong variable.

In def Open_folder():, instead of:

self.myvar.set(os.path.normpath(d))

I needed:

self.mystringVars[i].set(os.path.normpath(d))

edited Mar 14 '23 at 11:32

halfer

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answered Sep 20 '22 at 11:33

user20034454

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tkinter creating browse buttons in for loop & passing directory name to data entry widget

1 Answers1