How to add placeholder to an Entry in tkinter?

by

You can create a class that inherits from Entry like below:

import tkinter as tk

class EntryWithPlaceholder(tk.Entry):
    def __init__(self, master=None, placeholder="PLACEHOLDER", color="grey"):
        super().__init__(master)

        self.placeholder = placeholder
        self.placeholder_color = color
        self.default_fg_color = self['fg']

        self.bind("<FocusIn>", self.foc_in)
        self.bind("<FocusOut>", self.foc_out)

        self.put_placeholder()

    def put_placeholder(self):
        self.insert(0, self.placeholder)
        self['fg'] = self.placeholder_color

    def foc_in(self, *args):
        if self['fg'] == self.placeholder_color:
            self.delete('0', 'end')
            self['fg'] = self.default_fg_color

    def foc_out(self, *args):
        if not self.get():
            self.put_placeholder()

if __name__ == "__main__": 
    root = tk.Tk() 
    username = EntryWithPlaceholder(root, "username")
    password = EntryWithPlaceholder(root, "password", 'blue')
    username.pack()
    password.pack()  
    root.mainloop()

More Related Contents:

  1. Tkinter: AttributeError: NoneType object has no attribute
  2. tkinter: how to use after method
  3. How can I schedule updates (f/e, to update a clock) in tkinter?
  4. How to access variables from different classes in tkinter?
  5. Create a directly-executable cross-platform GUI app using Python
  6. How to add an image in Tkinter?
  7. Is this bad programming practice in tkinter?
  8. Using buttons in Tkinter to navigate to different pages of the application?
  9. Display the output of the program on GUI with tkinter?
  10. Redirect command line results to a tkinter GUI
  11. simple animation using tkinter
  12. Tkinter: Mouse drag a window without borders, eg. overridedirect(1)
  13. Program freezing during the execution of a function in Tkinter
  14. How can I make silent exceptions louder in tkinter?
  15. Tkinter: invoke event in main loop
  16. Tkinter window says (not responding) but code is running
  17. How to easily avoid Tkinter freezing?
  18. Tkinter Frame Resize
  19. TkInter Label Change Font Size by Text Length
  20. How to change a widget’s font style without knowing the widget’s font family/size?
  21. How to delete all children elements?
  22. How do you create a Button on a tkinter Canvas?
  23. Why do I get “AttributeError: NoneType object has no attribute” using Tkinter? Where did the None value come from?
  24. How to clear the Entry widget after a button is pressed in Tkinter?
  25. tkinter root.mainloop with While True loop
  26. Pretty print data in tkinter Label
  27. How to set the min and max height or width of a Frame?
  28. How to bind events to Canvas items?
  29. Generate Tkinter Buttons dynamically
  30. python gui events out of order

Leave a Comment