add to a list python
#append to list
lst = [1, 2, 3]
li = 4
lst.append(li)
#lst is now [1, 2, 3, 4]
.append("the add"): append the object to the end of the list.
.insert("the add"): inserts the object before the given index.
.extend("the add"): extends the list by appending elements from the iterable.add to list
import tkinter as tk
from tkinter import simpledialog
from tkinter import messagebox
import json
ROOT = tk.Tk()
ROOT.withdraw()
number = 0
thelist = []
while(number < 3):
USER_INP = simpledialog.askstring(title="List",
prompt="Add 3 items:")
thelist.append(USER_INP + ",")
number = number + 1
with open("list.json", 'w') as f:
json.dump(thelist, f, indent=2)
with open("list.json", 'r') as f:
thelist = json.load(f)
messagebox.showinfo("The List", thelist)Copyright © 2021 Codeinu
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