Tkinter 按钮插入 sqlite table 失败

Question

嘿，我正在制作一个使用 sqlite 作为数据库的小型 tkinter 应用程序。
在尝试向 table 中插入一行时，我经常遇到错误。按下按钮时发生。

from tkinter import *
import sqlite3

pol=sqlite3.connect('/home/tom/Documents/VScode/bazalogowanie/baza.db') 
kurs=pol.cursor() 
kurs.execute('CREATE TABLE IF NOT EXISTS bazal (id INTEGER PRIMARY KEY AUTOINCREMENT, login TEXT, haslo, TEXT)')

##def zapis(login, haslo):
    ##pass



def odczyt():
        cala_baza = kurs.execute('SELECT * FROM bazal')
        for uzytkownik in cala_baza:
            print(uzytkownik)

def koniec():
    pol.commit()
    pol.close()
    exit()

root=Tk()  
root.geometry("400x400")
topFrame = Frame(root).pack()
bottomFrame = Frame(root).pack(side = "bottom")

Label(root, text="LOGIN").pack()
LOGIN=Entry(root)
LOGIN.pack()
root.title("BAZA LOGOWANIA")
Label(root, text="HASŁO").pack()
HASLO=Entry(root)
HASLO.pack()
login = LOGIN.get()
haslo = HASLO.get()
Button(root, text = "Login", command=lambda:kurs.execute(f'INSERT INTO bazal (login, haslo) VALUES ("{login}","{haslo})"')).pack()
Button(root, text="def log", command=lambda:odczyt()).pack()
Button(root, text= "zamknij", command=lambda:koniec()).pack()


root.mainloop()

Exception in Tkinter callback
Traceback (most recent call last):
  File "/usr/lib/python3.8/tkinter/__init__.py", line 1892, in __call__
    return self.func(*args)
  File "/home/tom/Documents/VScode/bazalogowanie/baza logowanie.py", line 38, in <lambda>
    Button(root, text = "Login", command=lambda:     kurs.execute(f'INSERT INTO bazal (login, haslo) VALUES ("{login}","{haslo})"')).pack()
sqlite3.OperationalError: incomplete input
Exception in Tkinter callback
Traceback (most recent call last):
  File "/usr/lib/python3.8/tkinter/__init__.py", line 1892, in __call__
    return self.func(*args)
  File "/home/tom/Documents/VScode/bazalogowanie/baza logowanie.py", line 38, in <lambda>
    Button(root, text = "Login", command=lambda:     kurs.execute(f'INSERT INTO bazal (login, haslo) VALUES ("{login}","{haslo})"')).pack()
sqlite3.OperationalError: incomplete input

我不知道这个错误是从哪里来的我可以寻求帮助吗？

Answer 1

我得到了解决方案你的代码中有一个简单的错误。通常，当您错过关闭代码中的任何括号时会出现此错误

改变

Button(root, text = "Login", command=lambda:kurs.execute(f'INSERT INTO bazal (login, haslo) VALUES ("{login}","{haslo}")')).pack()

到

Button(root, text = "Login", command=lambda:kurs.execute(f'INSERT INTO bazal (login, haslo) VALUES ("{login}","{haslo})"')

错误是因为你在括号后加了双引号 ("{login}","{haslo})")。

你可以在这个link.

上看到同样的错误解决方法

Tkinter 按钮插入 sqlite table 失败

Tkinter button inserting into sqlite table fails

python

tkinter