Tkinter – динамическое удаление строк из сетки ⇐ Python

[Гость]

I have some code that reads a .csv file and then displays the content using grids and iterating through rows/columns to pack them, like so:

Код: Выделить всё

from tkinter import * import csv def createStandardTable(f,window):     global trow     global table     global w     global sizes     global record     global column     handle = csv.reader(f)     length = len(next(handle))     sizes = [0] * length     for record in handle:         for p,column in enumerate(record):             if len(column) > sizes[p]:                 sizes[p] = len(column)+3     f.seek(0)     trow = 0     table = Frame(window)     for record in handle:         for w,column in enumerate(record):             print(w)             setText = StringVar()             Entry(table,textvariable=setText,width=sizes[w]+5,relief="groove",justify=LEFT, background='white').grid(column=w,row=trow,sticky=W)             setText.set(column)         trow+=1     return table def delete_row():     l=list(table.grid_slaves(row=trow))     print(l)     for w in l:         w.grid_forget() def new_row():     global trow     for w,column in enumerate(record):         Entry(table,textvariable="",width=sizes[w]+5,relief="groove",justify=LEFT, background='white').grid(column=w,row=trow,sticky=W)         print (trow)     trow+=1 root = Tk() f = open("example.csv") newButton = Button(text='new row', command=new_row) deleteButton = Button(text='delete row', command='delete_row') newtable = createStandardTable(f,root) newtable.pack() newButton.pack() deleteButton.pack() root.mainloop() 

example.csv looks something like this:

Код: Выделить всё

ID  | Name | username | password 1234| Bob  | test123  | l98762 

When the "new row" button is pressed it successfully creates a new row. However, whenever the "delete row" button is pressed it doesn't delete the most recent row and I don't understand why not?

Can someone please explain what's wrong? Thanks.


Источник: https://stackoverflow.com/questions/486 ... ynamically