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  • Create a simple login application for MAC

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    Hi all,

    An app user has to login before navigating to the any screen. In our app user will enter username and password for login, so we need two textfield and a button two submit. so lets start and follow these steps.

    1) First step is to create a non resizable window 600X400 :-

    #!/usr/bin/python
    
    import sys
    if sys.version_info < (3, 0):
        # Python 2
        import Tkinter as tk
    else:
        # Python 3
        import tkinter as tk
    
    root = tk.Tk()
    root.title("Mac Application")
    root.resizable(width=False, height=False)
    root.geometry('600x400')
    tk.mainloop()

    2) Now create user interface for app : We added two labels , textfield and a button , to create UI we used tkinter library of python.

    #!/usr/bin/python
    
    import sys
    if sys.version_info < (3, 0):
        # Python 2
        import Tkinter as tk
    else:
        # Python 3
        import tkinter as tk
    
    username = "Jagan"
    password = "123456"
    
    class Login:
    
       def __init__(self, name, password):
          self.name = name
          self.password = password
          lbl1 = tk.Label( root, text="Username :").pack()
          self.e1 = tk.Entry(root, bd =5)
          self.e1.pack()
          lbl2 = tk.Label( root, text="Password :").pack()
          self.e2 = tk.Entry(root,show="*", bd =5)
          self.e2.pack()
          btn = tk.Button(root, text="Login",command=self.loginAction).pack()
          self.lbl = tk.Label( root, text="")
          self.lbl.pack()
    
    root = tk.Tk()
    root.title("Mac Application")
    root.resizable(width=False, height=False)
    root.geometry('600x400')
    
    obj = Login(username, password)
    tk.mainloop()

    3) Now add action to button and show the status of user action below :-

    #!/usr/bin/python
    
    import sys
    if sys.version_info < (3, 0):
        # Python 2
        import Tkinter as tk
    else:
        # Python 3
        import tkinter as tk
    
    username = "Jagan"
    password = "123456"
    
    class Login:
    
       def __init__(self, name, password):
          self.name = name
          self.password = password
          lbl1 = tk.Label( root, text="Username :").pack()
          self.e1 = tk.Entry(root, bd =5)
          self.e1.pack()
          lbl2 = tk.Label( root, text="Password :").pack()
          self.e2 = tk.Entry(root,show="*", bd =5)
          self.e2.pack()
          btn = tk.Button(root, text="Login",command=self.loginAction).pack()
          self.lbl = tk.Label( root, text="")
          self.lbl.pack()
    
       def loginAction(self):
    
       	  if self.name == self.e1.get() and self.password == self.e2.get():
       	  	self.lbl.config(text='Succesfully Logged In  !!')
       	  else:
       	  	self.lbl.config(text='Username or password is incorrect')
    
    
    root = tk.Tk()
    root.title("Mac Application")
    root.resizable(width=False, height=False)
    root.geometry('600x400')
    
    obj = Login(username, password)
    tk.mainloop()
     	 
    
    
    
    
    


    Now you can run this app from your command line and use Jagan as username and 123456 as password to login.

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