from tkinter import *
from tkinter import ttk

root = Tk()

tree = ttk.Treeview(root, columns=("order", "name", "price"))

def itemEvent(event):
	for item in tree.selection():
		item_text = tree.item(item, "values")
		print(item_text[0:2])


tree["show"] = "headings"
tree.heading("order", text="Order")
tree.column("order",minwidth=0,width=50)
tree.heading("name", text="Name")
tree.heading("price", text="Price")

tree.insert("", "end", values=(1,"SSD", "49€"))
tree.insert("", "end", values=(2,"Pendrive", "9€"))
tree.insert("", "end", values=(3,"USB", "4€","Edit"))
tree.insert("", "end", values=(4,"Hard Drive", "29€"))

tree.bind("<Double-1>", itemEvent)
tree.pack()

root.mainloop()