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This article introduces the relevant knowledge of "how to achieve account login between python tkinter and Mysql database". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

The database password has been implemented in this example, and the table structure of the database is as follows:

Information that has been inserted in the table:

The realization idea is that after the user completes the account password input and clicks the login button, the program first connects to the database, and then according to the parameters provided by the user

Issue the corresponding query statement and give the corresponding response according to the returned query results.

Code implementation

#-*-coding: utf-8-*-"Created on Tue Nov 6 14:29:54 2018Description: password authentication for tkinter 1. Verify with the database Version: @ author: HJY "" import tkinter as tkfrom tkinter import messageboximport sysimport pymysql class loginf (): def _ _ init__ (self,master): self.master = master self.face = tk.Frame (self.master,) self.face.pack () tk.Label (self.face,text=' account'). Pack () self.t_account = tk.Entry (self.face) ) self.t_account.pack () tk.Label (self.face,text=' password') .pack () self.t_password = tk.Entry (self.face,) self.t_password.pack () btn_login = tk.Button (self.face,text='login',command=self.login) btn_login.pack () def login (self ): account = self.t_account.get () password = self.t_password.get () # null operation: slightly print (account,password) # Database processing connection = pymysql.connect (host='localhost',user='root' Port=3306) try: with connection.cursor () as cursor: command1 = "use password "command2 =" select password from passbook where account = (% s) "cursor.execute (command1) result = cursor.execute (command2) (account) connection.close () except: sys.exit () else: if result = = 0: print ('no this clients') Tk.messagebox.showerror ('Info', "Account Not Exist!") Else: print ('find results:', result) if cursor.fetchone () [0] = = password: print ('Login results fulfilled') Tk.messagebox.showinfo ('Info', "Login successfully!") # destroy the login interface and generate the login interface self.face.destroy () homef (self.master) else: print ('password input error') tk.messagebox.showerror (' Info', "Password Error!") Class homef (): def _ init__ (self,master): self.master = master self.face = tk.Frame (self.master,) self.face.pack () btn_showinfo = tk.Button (self.face,text='info',command=self.showinfo) btn_showinfo.pack () def showinfo (self ): pass if _ _ name__ ='_ _ main__': root = tk.Tk () root.title ('Login with password') root.geometry (' 200x200') loginf (root) root.mainloop ()

Example of effect:

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