Çözüldü Python kodundaki hata nedir?

from tkinter import *
import sqlite3.
import os.

# Main Program.
root = Tk()
root.title("Minerals and Vitamins")
width = 400.
height = 240.
screen_width = root.winfo_screenwidth()
screen_height = root.winfo_screenheight()
x = (screen_width / 2) - (width / 2)
y = (screen_height / 2) - (height / 2)
root.geometry("%dx%d+%d+%d" % (width, height, x, y))
root.resizable(0, 0)

dosya = 'vt.sqlite'
dosya_mevcut = os.path.exists(dosya)

vt = sqlite3.connect(dosya)
im = vt.cursor()

mineral_datas = [("Calcium", 8.5, 10.4, "Wheat flour - 40 mg", "Corn flour - 9 mg", "Rice - 20 mg"),
 ("Sodium", 136, 145, "9 mg in Hot Red Pepper", "7 mg in Avocado", "4 mg in Quince"),
 ("Iron", 60, 170, "Pumpkin seeds - 10 mg", "Pistachios - 4 mg", "Moon core - 7 mg"),
 ("Magnesium", 2.0, 2.7, "Pumpkin seeds - 10 mg", "Pistachios - 4 mg", "Moon core - 7 mg"),
 ("Phosphorus", 2.7, 4.5, 'Dried apricots - 108 mg', 'Banana - 26 mg', 'Grapes - 20 mg')]

im.execute("""CREATE TABLE IF NOT EXISTS minerals.
(name TEXT, min_value REEL, max_value REEL, food_1 TEXT, food_2 TEXT, food_3 TEXT)""")

if not dosya_mevcut:
 for data in mineral_datas:
 im.execute("""INSERT INTO minerals VALUES(?, ?, ?, ?, ?, ?)""", data)
 vt.commit()

def getv(variable):
 variable = varList.get()
 return variable.

def buttonfunction(variable, entryvalue):
 last_value = int(entryvalue.get())
 if variable == "Calsium":
 im.execute("""SELECT * FROM minerals WHERE name = "Calcium" """)
 deger = im.fetchone()
 print(deger[1])
 if last_value < deger[1]:
 print("eksik")

# ==============================LABELS=========================================
hello_label = Label(root, text="Minerals and Vitamins", font=('MonoLisa', 15))
hello_label.pack(fill=X)

value_label = Label(root, text="Your Values: ", font=('MonoLisa', 15), bd=15)
value_label.place(x=15, y=60)

value_choose_label = Label(root, text="Your Chooses: ", font=('MonoLisa', 15), bd=15)
value_choose_label.place(x=15, y=110)

# ==============================ENTRY WIDGETS==================================
entryvalue = IntVar()
value_input = Entry(root, textvariable=entryvalue, font='MonoLisa')
value_input.place(x=165, y=78)

varList = StringVar(root)
varList.set("Please Choose")
choose_list = ["Calcium",
 "Sodium",
 "Iron",
 "Magnesium",
 "Phosphorus",
 "Potassium",
 "Zinc",
 "Copper",
 "Chromium",
 "Iodine",
 "Selenium",
 "Manganese",
 "Fluorine"]

choose_menu = OptionMenu(root, varList, *choose_list, command=getv)
choose_menu.place(x=165, y=122)

submit_button = Button(root, text="Submit", font=('Calibri', 10), command=buttonfunction)
submit_button.place(x=310, y=180)
# ==============================LOOP==================================
root.mainloop()