如何使用 TkInter 中的 label 打印元组列表？

Question

I'm making a recipe handling program using Python and TkInter. I have a list that contains tuples => (Ingredient, Quantity). I need to use a label to place it onto the screen. I want to eliminate the quotes and the list brackets ie [] but I want to keep the tuple brackets ie ()

mylist = [('a','2'),('b','4')]

I have tried iterating through the list but it just places the items one on top of the other and doesn't show everything.

Expected Output

Ingredients: (a,2), (b,4)

Answer 1

Try:

', '.join(f"({', '.join(str(x) for x in item)})" for item in mylist)

Answer 2

The below code does get rid of the '' in a and b:

from tkinter import *

root = Tk()

myList = [('a',2),('b',4)]

for index,item in enumerate(myList):
    Label(root,text=f'Ingredients: {item}').pack(pady=index+10)

root.mainloop()

But in this example i got it to be separated without the '' but here the tuple no longer is a tuple but instead just a normal text that looks like a tuple. Give this a try (Answer by @acw1668 gave me a hint on this)

from tkinter import *

root = Tk()

myList = [('a', '2'), ('b', '4')] #your initial list
final = [] #making an empty list to populate later on

new = (', '.join(f"({', '.join(str(x) for x in item)})" for item in myList)) # removing the quote and creating a single word

item1 = new[0:6] #splitting into two tuples by slicing
item2 = new[8:14] #doing the same with second item

final.append(item1) #appending it to the final list
final.append(item2) #doing the same 

for index,item in enumerate(final): #looping through the list giving each item in the list a number
    Label(root,text=f'Ingredients: {item}').pack(pady=index+10) #placing it on the screen with label and packing with padx

root.mainloop()

Hope it helped, let me know if any more errors:D

Cheers

Answer 3

This requires a custom toString method. It could be something like this:

def toString(arg):
    string = "Ingredients: "
    for part in arg:
        string += str(part) + ", "
    return string