create tk15

Author: Mofan Zhou

tkinterTUT/tk15_login_example/tk15_login_example.py

@@ -0,0 +1,104 @@
+# View more python learning tutorial on my Youtube and Youku channel!!!
+
+# Youtube video tutorial: https://www.youtube.com/channel/UCdyjiB5H8Pu7aDTNVXTTpcg
+# Youku video tutorial: http://i.youku.com/pythontutorial
+
+import tkinter as tk
+import pickle
+
+window = tk.Tk()
+window.title('Welcome to Mofan Python')
+window.geometry('450x300')
+
+# welcome image
+canvas = tk.Canvas(window, height=200, width=500)
+image_file = tk.PhotoImage(file='welcome.gif')
+image = canvas.create_image(0,0, anchor='nw', image=image_file)
+canvas.pack(side='top')
+
+# user information
+tk.Label(window, text='User name: ').place(x=50, y= 150)
+tk.Label(window, text='Password: ').place(x=50, y= 190)
+
+var_usr_name = tk.StringVar()
+var_usr_name.set('example@python.com')
+entry_usr_name = tk.Entry(window, textvariable=var_usr_name)
+entry_usr_name.place(x=160, y=150)
+var_usr_pwd = tk.StringVar()
+entry_usr_pwd = tk.Entry(window, textvariable=var_usr_pwd, show='*')
+entry_usr_pwd.place(x=160, y=190)
+
+def usr_login():
+    usr_name = var_usr_name.get()
+    usr_pwd = var_usr_pwd.get()
+    try:
+        with open('usrs_info.pickle', 'rb') as usr_file:
+            usrs_info = pickle.load(usr_file)
+    except FileNotFoundError:
+        with open('usrs_info.pickle', 'wb') as usr_file:
+            usrs_info = {'admin': 'admin'}
+            pickle.dump(usrs_info, usr_file)
+    if usr_name in usrs_info:
+        if usr_pwd == usrs_info[usr_name]:
+            tk.messagebox.showinfo(title='Welcome', message='How are you? ' + usr_name)
+        else:
+            tk.messagebox.showerror(message='Error, your password is wrong, try again.')
+    else:
+        is_sign_up = tk.messagebox.askyesno('Welcome',
+                               'You have not signed up yet. Sign up today?')
+        if is_sign_up:
+            usr_sign_up()
+
+def usr_sign_up():
+    def sign_to_Mofan_Python():
+        np = new_pwd.get()
+        npf = new_pwd_confirm.get()
+        nn = new_name.get()
+        with open('usrs_info.pickle', 'rb') as usr_file:
+            exist_usr_info = pickle.load(usr_file)
+        if np != npf:
+            tk.messagebox.showerror('Error', 'Password and confirm password must be the same!')
+        elif nn in exist_usr_info:
+            tk.messagebox.showerror('Error', 'The user has already signed up!')
+        else:
+            exist_usr_info[nn] = np
+            with open('usrs_info.pickle', 'wb') as usr_file:
+                pickle.dump(exist_usr_info, usr_file)
+            tk.messagebox.showinfo('Welcome', 'You have successfully signed up!')
+            window_sign_up.destroy()
+    window_sign_up = tk.Toplevel(window)
+    window_sign_up.geometry('350x200')
+    window_sign_up.title('Sign up window')
+
+    new_name = tk.StringVar()
+    new_name.set('example@python.com')
+    tk.Label(window_sign_up, text='User name: ').place(x=10, y= 10)
+    entry_new_name = tk.Entry(window_sign_up, textvariable=new_name)
+    entry_new_name.place(x=150, y=10)
+
+    new_pwd = tk.StringVar()
+    tk.Label(window_sign_up, text='Password: ').place(x=10, y=50)
+    entry_usr_pwd = tk.Entry(window_sign_up, textvariable=new_pwd, show='*')
+    entry_usr_pwd.place(x=150, y=50)
+
+    new_pwd_confirm = tk.StringVar()
+    tk.Label(window_sign_up, text='Confirm password: ').place(x=10, y= 90)
+    entry_usr_pwd_confirm = tk.Entry(window_sign_up, textvariable=new_pwd_confirm, show='*')
+    entry_usr_pwd_confirm.place(x=150, y=90)
+
+    btn_comfirm_sign_up = tk.Button(window_sign_up, text='Sign up', command=sign_to_Mofan_Python)
+    btn_comfirm_sign_up.place(x=150, y=130)
+
+# login and sign up button
+btn_login = tk.Button(window, text='Login', command=usr_login)
+btn_login.place(x=170, y=230)
+btn_sign_up = tk.Button(window, text='Sign up', command=usr_sign_up)
+btn_sign_up.place(x=270, y=230)
+
+window.mainloop()
+
+
+
+
+
+