Tkinter - Hide Hint

Question

How can this hint be automatically deleted when I select the username and password section? (Don't show after clicking)

from tkinter import *
root =Tk()
def save_fonc():
    kul=entry1.get()
    pas=entry2.get()
    print("Username:",kul,"Password:",pas)

#------------------
entry1=Entry(root)
entry1.insert(0,"Username")
entry1.pack()
#------------------
entry2=Entry(root)
entry2.insert(0,"Password")
#entry2.config(show="*")#and also I don't want to show password section.
entry2.pack()
#------------------
buton_kaydet=Button(root,text="Enter",command=save_fonc)
buton_kaydet.pack()

root.geometry("300x200")
root.mainloop()

Answer 1

So here You go improved Your code:

from tkinter import *
root = Tk()


def save_fonc():
    kul = entry1.get()
    pas = entry2.get()
    print("Username:", kul, "Password:", pas)


def pass_func(event):
    entry2.delete(0, 'end')
    entry2.config(show='*')

# ------------------
entry1 = Entry(root)
entry1.insert(0, "Username")
entry1.pack()
entry1.bind('<FocusIn>', lambda e: entry1.delete(0, 'end'))
# ------------------
entry2 = Entry(root)
entry2.insert(0, "Password")
entry2.pack()
entry2.bind('<FocusIn>', pass_func)
# ------------------
buton_kaydet = Button(root, text="Enter", command=save_fonc)
buton_kaydet.pack()

root.geometry("300x200")
root.mainloop()

So basically .bind binds each entry to an event in this case: '<FocusIn>' which is triggered when focus switches to that widget. Also in the second case the entry is configured only after event trigger so that 'Password' is visible as normal