我对Tkinter有点陌生。我在Windows x64上运行Python 3.7.4。我正在尝试制作一个简单的复选框驱动菜单，该菜单将基于复选框传递某些值。这是代码：
main.py
import sqlite3
import os
from cryptography.fernet import Fernet
path = r"C:\Users\anves\PycharmProjects\pwdatabase\pwprotect.db"
def dbcreate():
db = sqlite3.connect('pwprotect.db')
csr = db.cursor()
csr.execute("CREATE TABLE INFO(SITENAME TEXT,username TEXT,PASSWORD TEXT,PWKEY TEXT)")
if not os.path.exists(path):
dbcreate()
db = sqlite3.connect('pwprotect.db')
def home():
print("Welcome to Password Database!")
print()
print("1. Make a new entry")
print("2. Search in existing entries")
print("3. Update an existing entry")
ch = int(input("Enter your choice: "))
print()
if ch == 1:
insert()
if ch == 2:
search()
if ch == 3:
update()
def insert(sitename,username,password):
while True:
'''
print()
sitename = input("Enter the name of the site: ").lower()
username = input("Enter your username for the site: ")
password = ""
ch = input("Do you want to use our generated password?(y/n): ")
if ch == "y":
password = pwgenerator()
print("Your generated password is ",password)
elif ch == "n":
password = input("Enter your password for the site: ")
'''
enk,key = encrypt(password)
entities = (sitename,enk,key)
cursor = db.cursor()
cursor.execute('INSERT INTO INFO(SITENAME,username,PASSWORD,PWKEY) VALUES (?,?,?)',entities)
db.commit()
'''
ch = input("Do you want to make another entry?(y/n): ")
if ch == 'n':
ch = input("Do you want to return to home screen?(y/n): ")
print()
if ch == 'y':
home()
break
elif ch == 'n':
print("Thank you for using Password Database")
return
elif ch == 'y':
continue
else:
print("Invalid input")
home()
break
'''
break
return
def search(site):
while True:
# site = input('Enter the name of the site: ').lower()
csr = db.cursor()
csr.execute('SELECT username,PWKEY FROM INFO WHERE SITENAME == ?',(site,))
row = csr.fetchone()
if row is not None:
username = row[0]
enk = row[1]
key = row[2]
else:
# print("Data not found")
# home()
return "not found","not found"
password = decrypt(enk,key)
'''
print()
print("username: ",username)
print("Password: ",password)
ch = input("Do you want to search again?(y/n): ")
if ch == 'n':
ch = input("Do you want to return to home screen?(y/n): ")
print()
if ch == 'y':
home()
break
elif ch == 'n':
print("Thank you for using Password Database")
return
elif ch == 'y':
continue
else:
print("Invalid input")
home()
break
'''
break
return username,password
def update(site,user,passw):
while True:
# site = input('Enter the name of the site: ').lower()
# ch = int(input("1 = Change username,2 = Change Password: "))
csr = db.cursor()
if passw is None:
# user = input("Enter new username: ")
csr.execute('UPDATE INFO SET username = ? WHERE SITENAME = ?',(user,site))
db.commit()
# print("Your new username is ",user)
elif site is None:
# passw = ""
# c = input("Do you want to use our generated password?(y/n): ")
'''
if c == "y":
passw = pwgenerator()
elif c == "n":
passw = input("Enter new password: ")
'''
enk,key = encrypt(passw)
csr.execute('UPDATE INFO SET PASSWORD = ? WHERE SITENAME = ?',(enk,site))
csr.execute('UPDATE INFO SET PWKEY = ? WHERE SITENAME = ?',(key,site))
db.commit()
# print("Your new password is ",passw)
else:
enk,key = encrypt(passw)
csr.execute('UPDATE INFO SET username = ? WHERE SITENAME = ?',site))
csr.execute('UPDATE INFO SET PASSWORD = ? WHERE SITENAME = ?',site))
db.commit()
'''
else:
print("Invalid input")
home()
break
ch = input("Do you want to update again?(y/n): ")
if ch == 'n':
ch = input("Do you want to return to home screen?(y/n): ")
print()
if ch == 'y':
home()
break
elif ch == 'n':
print("Thank you for using Password Database")
return
elif ch == 'y':
continue
else:
print("Invalid input")
home()
break
'''
break
def pwgenerator():
import random
pw = ""
lower = ["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"]
upper = ["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"]
digits = ["0","1","2","3","4","5","6","7","8","9"]
special = ["@","%","+",'/',"!","#","$","^","?",":",",".","_","-"]
i = 0
while i <= 15:
n = random.randint(0,4)
if n == 1:
pw = pw + random.choice(lower)
elif n == 2:
pw = pw + random.choice(upper)
elif n == 3:
pw = pw + random.choice(digits)
elif n == 4:
pw = pw + random.choice(special)
i += 1
print(pw)
return pw
def encrypt(pw):
key = Fernet.generate_key()
f = Fernet(key)
b = bytes(pw,'utf-8')
encoded = f.encrypt(b)
return encoded,key
def decrypt(enk,key):
f = Fernet(key)
decoded = f.decrypt(enk)
pw = str(decoded.decode('utf-8'))
return pw
gui.py
from tkinter import messagebox
import tkinter
import main
win1 = tkinter.Tk()
win1.geometry("500x200")
win1.title("Password Database")
l1 = tkinter.Label(win1,text="Welcome to Password Database!").grid(row=0,column=0)
l2 = tkinter.Label(win1,text="").grid(row=1,column=0)
entry = tkinter.Label(win1,text="1. Make a new entry")
entry.grid(row=2,column=0)
search = tkinter.Label(win1,text="2. Search for an existing entry")
search.grid(row=3,column=0)
update = tkinter.Label(win1,text="3. Update an existing entry")
update.grid(row=4,column=0)
choice = tkinter.Entry(win1,width=10)
choice.grid(row=5,column=0)
def entrygui():
wini = tkinter.Tk()
wini.geometry("500x200")
wini.title("New Entry")
entryl1 = tkinter.Label(wini,text="Enter name of the site: ")
entryl2 = tkinter.Label(wini,text="Enter your username for the site: ")
entryl3 = tkinter.Label(wini,text="Enter the password the site: ")
entrye1 = tkinter.Entry(wini,width=20)
entrye2 = tkinter.Entry(wini,width=20)
entrye3 = tkinter.Entry(wini,width=20)
entryl1.grid(row=0,column=0)
entryl2.grid(row=1,column=0)
entryl3.grid(row=2,column=0)
entrye1.grid(row=0,column=1)
entrye2.grid(row=1,column=1)
entrye3.grid(row=2,column=1)
def insertbt():
site = str(entrye1.get())
user = str(entrye2.get())
passw = str(entrye3.get())
main.insert(site,passw)
messagebox.showinfo("Success!","Entry added!")
wini.destroy()
insert = tkinter.Button(wini,text="Insert",command=insertbt)
insert.grid(row=3,column=0)
wini.mainloop()
def searchgui():
wins = tkinter.Tk()
wins.geometry("500x200")
wins.title("Search")
searchl1 = tkinter.Label(wins,text="Enter the name of the site: ")
searchl1.grid(row=0,column=0)
searche1 = tkinter.Entry(wins,width=20)
searche1.grid(row=0,column=1)
def searchbt():
site = str(searche1.get())
user,passw = main.search(site)
messagebox.showinfo("Success!","username is "+user+"\nPassword is "+passw)
wins.destroy()
searchbtn = tkinter.Button(wins,text="Search",command=searchbt)
searchbtn.grid(row=1,column=0)
wins.mainloop()
def updategui():
winu = tkinter.Tk()
winu.geometry("500x200")
winu.title("Update")
caution = tkinter.Label(winu,text="Please select the option if you are updating the corresponding value")
caution.grid(row=0,column=0)
sitel = tkinter.Label(winu,text="Enter site name: ")
sitee = tkinter.Entry(winu,width=20)
userv = tkinter.IntVar()
userr = tkinter.Checkbutton(winu,text="New username: ",variable=userv)
passv = tkinter.IntVar()
passr = tkinter.Checkbutton(winu,text="New Password: ",variable=passv)
usere = tkinter.Entry(winu,width=20)
passe = tkinter.Entry(winu,width=20)
sitel.grid(row=1,column=0)
sitee.grid(row=1,column=1)
userr.grid(row=2,column=0)
usere.grid(row=2,column=1)
passr.grid(row=3,column=0)
passe.grid(row=3,column=1)
def updatebt():
userval = int(userv.get())
passval = int(passv.get())
print(userval,passval)
site = str(sitee.get())
if userval == 1 and passval == 0:
user = str(usere.get())
passw = None
main.update(site,passw)
messagebox.showinfo("Success","username updated")
winu.destroy()
elif userval == 0 and passval == 1:
user = None
passw = passe.get()
main.update(site,"Password updated")
winu.destroy()
elif userval == 1 and passval == 1:
user = str(usere.get())
passw = str(usere.get())
main.update(site,"username and password updated")
winu.destroy()
elif userval == 0 and passval == 0:
messagebox.showinfo("Error","Please check a box")
updatebtn = tkinter.Button(winu,text="Update",command=updatebt)
updatebtn.grid(row=4,column=0)
winu.mainloop()
def choicefn():
ch = int(choice.get())
if ch == 1:
entrygui()
elif ch == 2:
searchgui()
elif ch == 3:
updategui()
else:
messagebox.showinfo("ERROR","Please enter a valid choice")
submit = tkinter.Button(win1,text="Submit",command=choicefn).grid(row=5,column=1)
win1.mainloop()
updategui（）函数存在问题。复选框值未更新。
输出始终为0,0，并显示相应的错误框。 我编写的并行代码中没有这样的问题：
import tkinter
from tkinter import Checkbutton
win = tkinter.Tk()
v1 = tkinter.IntVar()
v1.set(0)
v2 = tkinter.IntVar()
v2.set(0)
c1 = tkinter.Checkbutton(win,text="mf",variable=v1)
c1.grid(row=0,column=0)
c2 = tkinter.Checkbutton(win,text="yeet",variable=v2)
c2.grid(row=1,column=0)
def btfn():
i1 = (v1.get())
i2 = (v2.get())
print(i1,i2)
bt = tkinter.Button(win,text="Display",command=btfn)
bt.grid(row=2,column=0)
win.mainloop()
任何帮助将不胜感激！ （P.S.我在变量名的末尾添加“ e”以表示Entry，在Label处添加“ l”等）