Populate Treeview with info from sql? - python-3.x

Question

I would like to ask for some advice on the code I have below:
from tkinter import *
from tkinter import ttk
import sqlite3
root = Tk()
root.geometry("500x500")
root.title("Inventory Balance")
def db():
global conn, mycursor
conn = sqlite3.connect('MyStock.sql3')
mycursor = conn.cursor()
def data():`
tree.delete(*tree.get_children())
mycursor.execute("SELECT * FROM ItemCode")
for row in myscursor:
tree.insert('', 'end', values=row[1:6])
conn.close()
frame = Frame(root)
frame.pack()
tree = ttk.Treeview(frame, columns = (1,2,3,4,5), height = 20, show = "headings")
tree.pack(side = 'top')
tree.heading(1, text="ItemCode")
tree.heading(2, text="Description")
tree.heading(3, text="Category")
tree.heading(4, text="Unit")
tree.heading(5, text="Quantity")
tree.column(1, width = 100)
tree.column(2, width = 100)
tree.column(3, width = 100)
tree.column(4, width = 100)
tree.column(5, width = 100)
# Inserting Scrollbar
scroll = ttk.Scrollbar(frame, orient="vertical", command=tree.yview)
scroll.pack(side = 'right', fill = 'y')
tree.configure(yscrollcommand=scroll.set)
root.mainloop()
I will later have to use this as a main screen, add buttons and have a constantly updating treeview showing as stock is used and then updated via another python tkinter script.
My main issue is that it reads the correct column (ItemCode, Description, Category, Unit, Quantity) but the information contained in the database does not display in the treeview.
Please help and do not hesitate to ask for any more information where required.
I edited the script as recommended and still end up with this:
enter image description here
Thank you again

Answer 1

There are two issues in your code:
using info when inserting record into treeview. row should be used
treeview.insert(...) expects two positional arguments: parent and index
So change:
info = mycursor.fetchall()
for row in info:
tree.insert(values=(info[1], info[2], info[3], info[4], info[5]))
to:
for row in mycursor:
tree.insert('', 'end', values=row[1:6])