Display text when cursor is placed over button in python

Question

How to display text in the window when the cursor is placed over the button.

I have below code, when put cursor over the button "Ok" it has to show text as "Check details filled before pressing Ok".

import Tkinter

class Example(Tkinter.Frame):
    def __init__(self, *args, **kwargs):
        Tkinter.Frame.__init__(self, *args, **kwargs)
        self.l1 = Tkinter.Label(self, text="Enter name")
        self.l2 = Tkinter.Label(self, text="", width=40)
        self.l1.pack(side="top")
        self.l2.pack(side="top", fill="x")

        self.b1 = Tkinter.Button(root, text="Ok")
        self.b1.bind("<Enter>", self.on_enter)
        self.b1.bind("<Leave>", self.on_leave)
        self.b1.pack()       

    def on_enter(self, event):
        self.l2.configure(text="Check details filled before pressing Ok")

    def on_leave(self, enter):
        self.l2.configure(text="")

if __name__ == "__main__":
    root = Tkinter.Tk()
    Example(root).pack(side="top", fill="both", expand="true")
    root.mainloop()

The same code works fine if I write for display text when cursor is placed over label l1. Is there any other way to proceed for displaying when cursor placed on button or any modifications??

@martineau: I'm not sure the OP is asking about a tooltip. They have a static label widget they want to display messages in (I think...) — Bryan Oakley
– Bryan Oakley, Commented Jun 1, 2015 at 19:44
@Bryan: They may using a static label widget because that's the only way they've thought of to do it — but of course I could be wrong (and is why I didn't flag the question as a duplicate). — martineau
– martineau, Commented Jun 1, 2015 at 20:09
Possible duplicate of What is the simplest way to make tooltips in Tkinter? — Stevoisiak
– Stevoisiak, Commented Feb 21, 2018 at 19:16

Bryan Oakley · Accepted Answer · 2015-06-01 19:43:59Z

3

If I understand the question correctly, you want to be able to display different messages when the mouse is over different widgets. The simplest solution is to add a custom attribute to each widget object that contains the message, and then get that message from the attribute in the bound function.

For example:

class Example(...):
    def __init__(...):
        ...
        self.l1.description = "This is label 1"
        self.l2.description = "This is label 2"
        self.b1.description = "This is the OK button"

        for widget in (self.l1, self.l2, self.b1):
            widget.bind("<Enter>", self.on_enter)
            widget.bind("<Leave>", self.on_leave)
        ...

    def on_enter(self, event):
        description = getattr(event.widget, "description", "")
        self.l2.configure(text=description)

answered Jun 1, 2015 at 19:43

Bryan Oakley

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Comments

Community · Accepted Answer · 2020-06-20 09:12:55Z

3

As far as I know, Tk doesn't have a built in construct for button ToolTips

In Qt (PyQt), which is another GUI framework, this a a built in feature - for example:

button1 = QtGui.QPushButton("This is button1", self)
button1.setToolTip("You have moused over Button1)

There are some workarounds for adding this type of functionality to Tk but it may take you some time to directly implement them into your program

Essentially you create your own class ToolTip() and a function in your module to add a new ToolTip, addToolTip()

Here are two references for doing this: ref 1 ref 2

Edit: Note that ref1 here is the same link that is the accepted answer in the question Martineau links to in the comments for this question.

edited Jun 20, 2020 at 9:12

CommunityBot

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answered Jun 1, 2015 at 19:01

Maxwell Grady

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3 Comments

Maxwell Grady Over a year ago

I'd be happy to change something if I have misspoken or said something that was simply incorrect - the first reference I posted solves the issue in a very similar manner by providing binding <Enter> and <Leave> to some defined function to show text. Not sure what the issue was but apologies if I said something wrong

Maxwell Grady Over a year ago

my point was just questioning why I was down-voted without any comments - I'm totally ok with getting down-votes if there's some discussion of why my answer was not correct or not relevant. I just dislike seeing random down-votes with no discussion.Its harder for people to learn that way.

Ds Arjun Over a year ago

Maxwell Grady, i didnt down vote for that. it was really helpful for me. Thank you very much.

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