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Comment afficher les info-bulles dans Tkinter?

Les info-bulles sont ces petits morceaux de texte qui apparaissent lorsque la souris survole un widget pendant une certaine durée.

Comment puis-je ajouter un message d'info-bulle à mon tkinter Python?

Example of tooltip

37
rectangletangle

La classe Pmw.Balloon de Pmw toolkit pour Tkinter dessinera des info-bulles.

Jetez également un œil à ce article de blog , qui adapte du code d'IDLE utilisé pour afficher les info-bulles avec Tkinter.

17
ars

J'ai essayé le code dans le article de blog mentionné par ars , et j'ai également essayé le code de IDLE lib .

Alors que les deux fonctionnaient, je n'aimais pas la taille limitée de l'info-bulle d'IDLE (j'ai dû saisir manuellement de nouvelles lignes sous forme de listes distinctes) et la façon dont les astuces sont apparues immédiatement sous la forme de code de l'article de blog.

J'ai donc fait un hybride entre les deux. Il vous permet de spécifier une longueur d'habillage et un temps de survol, sans restriction pour chacun:

""" tk_ToolTip_class101.py
gives a Tkinter widget a tooltip as the mouse is above the widget
tested with Python27 and Python34  by  vegaseat  09sep2014
www.daniweb.com/programming/software-development/code/484591/a-tooltip-class-for-tkinter

Modified to include a delay time by Victor Zaccardo, 25mar16
"""

try:
    # for Python2
    import Tkinter as tk
except ImportError:
    # for Python3
    import tkinter as tk

class CreateToolTip(object):
    """
    create a tooltip for a given widget
    """
    def __init__(self, widget, text='widget info'):
        self.waittime = 500     #miliseconds
        self.wraplength = 180   #pixels
        self.widget = widget
        self.text = text
        self.widget.bind("<Enter>", self.enter)
        self.widget.bind("<Leave>", self.leave)
        self.widget.bind("<ButtonPress>", self.leave)
        self.id = None
        self.tw = None

    def enter(self, event=None):
        self.schedule()

    def leave(self, event=None):
        self.unschedule()
        self.hidetip()

    def schedule(self):
        self.unschedule()
        self.id = self.widget.after(self.waittime, self.showtip)

    def unschedule(self):
        id = self.id
        self.id = None
        if id:
            self.widget.after_cancel(id)

    def showtip(self, event=None):
        x = y = 0
        x, y, cx, cy = self.widget.bbox("insert")
        x += self.widget.winfo_rootx() + 25
        y += self.widget.winfo_rooty() + 20
        # creates a toplevel window
        self.tw = tk.Toplevel(self.widget)
        # Leaves only the label and removes the app window
        self.tw.wm_overrideredirect(True)
        self.tw.wm_geometry("+%d+%d" % (x, y))
        label = tk.Label(self.tw, text=self.text, justify='left',
                       background="#ffffff", relief='solid', borderwidth=1,
                       wraplength = self.wraplength)
        label.pack(ipadx=1)

    def hidetip(self):
        tw = self.tw
        self.tw= None
        if tw:
            tw.destroy()

# testing ...
if __name__ == '__main__':
    root = tk.Tk()
    btn1 = tk.Button(root, text="button 1")
    btn1.pack(padx=10, pady=5)
    button1_ttp = CreateToolTip(btn1, \
   'Neque porro quisquam est qui dolorem ipsum quia dolor sit amet, '
   'consectetur, adipisci velit. Neque porro quisquam est qui dolorem ipsum '
   'quia dolor sit amet, consectetur, adipisci velit. Neque porro quisquam '
   'est qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit.')

    btn2 = tk.Button(root, text="button 2")
    btn2.pack(padx=10, pady=5)
    button2_ttp = CreateToolTip(btn2, \
    "First thing's first, I'm the realest. Drop this and let the whole world "
    "feel it. And I'm still in the Murda Bizness. I could hold you down, like "
    "I'm givin' lessons in  physics. You should want a bad Vic like this.")
    root.mainloop()

Capture d'écran:

Example of hovertext

34
crxguy52

Puisque vous utilisez Windows 7, votre installation Python comprend probablement déjà Tix . Utilisez le widget Tix.Balloon. Exemple de code existe dans l'arborescence source Python.

Fondamentalement, vous créez un Tix.Balloon widget, vous le liez à d'autres widgets via son .bind_widget et fournissez le message bulle à l'aide de son argument balloonmsg.

11
tzot

Tout d'abord, j'aime vraiment l'info-bulle d'Alberto Vassena et j'ai essayé de commenter son post avec cette correction de bug, mais en tant que nouvel utilisateur, je n'ai pas assez de points pour faire un commentaire, donc je suis faire une réponse. J'espère que c'est acceptable.

Il y avait un très petit bug dans l'excellente réponse d'Alberto Vassena et une info-bulle améliorée.

Bogue: pour le libellé réel, son code appelle ttk.Label au lieu de tk.Label. Cela a entraîné le rendu de la boîte d'info-bulles, mais pas le texte réel jusqu'à ce qu'un autre événement d'interface utilisateur tel qu'un autre déplacement de la souris ou un événement de clavier.

Voici le code corrigé pour un copier-coller complet:

import tkinter as tk
import tkinter.ttk as ttk


class Tooltip:
    '''
    It creates a tooltip for a given widget as the mouse goes on it.

    see:

    http://stackoverflow.com/questions/3221956/
           what-is-the-simplest-way-to-make-tooltips-
           in-tkinter/36221216#36221216

    http://www.daniweb.com/programming/software-development/
           code/484591/a-tooltip-class-for-tkinter

    - Originally written by vegaseat on 2014.09.09.

    - Modified to include a delay time by Victor Zaccardo on 2016.03.25.

    - Modified
        - to correct extreme right and extreme bottom behavior,
        - to stay inside the screen whenever the tooltip might go out on
          the top but still the screen is higher than the tooltip,
        - to use the more flexible mouse positioning,
        - to add customizable background color, padding, waittime and
          wraplength on creation
      by Alberto Vassena on 2016.11.05.

      Tested on Ubuntu 16.04/16.10, running Python 3.5.2

    TODO: themes styles support
    '''

    def __init__(self, widget,
                 *,
                 bg='#FFFFEA',
                 pad=(5, 3, 5, 3),
                 text='widget info',
                 waittime=400,
                 wraplength=250):

        self.waittime = waittime  # in miliseconds, originally 500
        self.wraplength = wraplength  # in pixels, originally 180
        self.widget = widget
        self.text = text
        self.widget.bind("<Enter>", self.onEnter)
        self.widget.bind("<Leave>", self.onLeave)
        self.widget.bind("<ButtonPress>", self.onLeave)
        self.bg = bg
        self.pad = pad
        self.id = None
        self.tw = None

    def onEnter(self, event=None):
        self.schedule()

    def onLeave(self, event=None):
        self.unschedule()
        self.hide()

    def schedule(self):
        self.unschedule()
        self.id = self.widget.after(self.waittime, self.show)

    def unschedule(self):
        id_ = self.id
        self.id = None
        if id_:
            self.widget.after_cancel(id_)

    def show(self):
        def tip_pos_calculator(widget, label,
                               *,
                               tip_delta=(10, 5), pad=(5, 3, 5, 3)):

            w = widget

            s_width, s_height = w.winfo_screenwidth(), w.winfo_screenheight()

            width, height = (pad[0] + label.winfo_reqwidth() + pad[2],
                             pad[1] + label.winfo_reqheight() + pad[3])

            mouse_x, mouse_y = w.winfo_pointerxy()

            x1, y1 = mouse_x + tip_delta[0], mouse_y + tip_delta[1]
            x2, y2 = x1 + width, y1 + height

            x_delta = x2 - s_width
            if x_delta < 0:
                x_delta = 0
            y_delta = y2 - s_height
            if y_delta < 0:
                y_delta = 0

            offscreen = (x_delta, y_delta) != (0, 0)

            if offscreen:

                if x_delta:
                    x1 = mouse_x - tip_delta[0] - width

                if y_delta:
                    y1 = mouse_y - tip_delta[1] - height

            offscreen_again = y1 < 0  # out on the top

            if offscreen_again:
                # No further checks will be done.

                # TIP:
                # A further mod might automagically augment the
                # wraplength when the tooltip is too high to be
                # kept inside the screen.
                y1 = 0

            return x1, y1

        bg = self.bg
        pad = self.pad
        widget = self.widget

        # creates a toplevel window
        self.tw = tk.Toplevel(widget)

        # Leaves only the label and removes the app window
        self.tw.wm_overrideredirect(True)

        win = tk.Frame(self.tw,
                       background=bg,
                       borderwidth=0)
        label = tk.Label(win,
                          text=self.text,
                          justify=tk.LEFT,
                          background=bg,
                          relief=tk.SOLID,
                          borderwidth=0,
                          wraplength=self.wraplength)

        label.grid(padx=(pad[0], pad[2]),
                   pady=(pad[1], pad[3]),
                   sticky=tk.NSEW)
        win.grid()

        x, y = tip_pos_calculator(widget, label)

        self.tw.wm_geometry("+%d+%d" % (x, y))

    def hide(self):
        tw = self.tw
        if tw:
            tw.destroy()
        self.tw = None


if __name__ == '__main__':

    import random

    def further_text():
        # texts generated at http://lorem-ipsum.perbang.dk/
        short_text = ('Lorem ipsum dolor sit amet, mauris tellus, '
                     'porttitor torquent eu. Magna aliquet lorem, '
                     'cursus sit ac, in in. Dolor aliquet, cum integer. '
                     'Proin aliquet, porttitor pulvinar mauris. Tellus '
                     'lectus, amet cras, neque lacus quis. Malesuada '
                     'nibh. Eleifend nam, in eget a. Nec turpis, erat '
                     'wisi semper')
        medium_text = ('Lorem ipsum dolor sit amet, suspendisse aenean '
                       'ipsum sollicitudin, pellentesque nunc ultrices ac '
                       'ut, arcu elit turpis senectus convallis. Ac orci '
                       'pretium sed gravida, tortor nulla felis '
                       'consectetuer, mauris egestas est erat. Ut enim '
                       'tellus at diam, ac sagittis vel proin. Massa '
                       'eleifend orci tortor sociis, scelerisque in pede '
                       'metus phasellus, est tempor gravida nam, ante '
                       'fusce sem tempor. Mi diam auctor vel pede, mus '
                       'non mi luctus luctus, lectus sit varius repellat '
                       'eu')
        long_text = ('Lorem ipsum dolor sit amet, velit eu nam cursus '
                     'quisque gravida sollicitudin, felis arcu interdum '
                     'error quam quis massa, et velit libero ligula est '
                     'donec. Suspendisse fringilla urna ridiculus dui '
                     'volutpat justo, quisque nisl eget sed blandit '
                     'egestas, libero nullam magna sem dui nam, auctor '
                     'vehicula nunc arcu vel sed dictum, tincidunt vitae '
                     'id tristique aptent platea. Lacus eros nec proin '
                     'morbi sollicitudin integer, montes suspendisse '
                     'augue lorem iaculis sed, viverra sed interdum eget '
                     'ut at pulvinar, turpis vivamus ac pharetra nulla '
                     'maecenas ut. Consequat dui condimentum lectus nulla '
                     'vitae, nam consequat fusce ac facilisis eget orci, '
                     'cras enim donec aenean sed dolor aliquam, elit '
                     'lorem in a nec fringilla, malesuada curabitur diam '
                     'nonummy nisl nibh ipsum. In odio nunc nec porttitor '
                     'ipsum, nunc ridiculus platea wisi turpis praesent '
                     'vestibulum, suspendisse hendrerit amet quis vivamus '
                     'adipiscing elit, ut dolor nec nonummy mauris nec '
                     'libero, ad rutrum id tristique facilisis sed '
                     'ultrices. Convallis velit posuere mauris lectus sit '
                     'turpis, lobortis volutpat et placerat leo '
                     'malesuada, vulputate id maecenas at a volutpat '
                     'vulputate, est augue nec proin ipsum pellentesque '
                     'fringilla. Mattis feugiat metus ultricies repellat '
                     'dictum, suspendisse erat rhoncus ultricies in ipsum, '
                     'nulla ante pellentesque blandit ligula sagittis '
                     'ultricies, sed tortor sodales pede et duis platea')

        text = random.choice([short_text, medium_text, long_text, long_text])

        return '\nFurther info: ' + text

    def main_01(wraplength=200):

        # alias
        stuff = further_text

        root = tk.Tk()
        frame = ttk.Frame(root)

        btn_ne = ttk.Button(frame, text='North East')
        btn_se = ttk.Button(frame, text='South East')
        btn_sw = ttk.Button(frame, text='South West')
        btn_nw = ttk.Button(frame, text='North West')
        btn_center = ttk.Button(frame, text='Center')
        btn_n = ttk.Button(frame, text='North')
        btn_e = ttk.Button(frame, text='East')
        btn_s = ttk.Button(frame, text='South')
        btn_w = ttk.Button(frame, text='West')

        Tooltip(btn_nw, text='North West' + stuff(), wraplength=wraplength)
        Tooltip(btn_ne, text='North East' + stuff(), wraplength=wraplength)
        Tooltip(btn_se, text='South East' + stuff(), wraplength=wraplength)
        Tooltip(btn_sw, text='South West' + stuff(), wraplength=wraplength)
        Tooltip(btn_center, text='Center' + stuff(), wraplength=wraplength)
        Tooltip(btn_n, text='North' + stuff(), wraplength=wraplength)
        Tooltip(btn_e, text='East' + stuff(), wraplength=wraplength)
        Tooltip(btn_s, text='South' + stuff(), wraplength=wraplength)
        Tooltip(btn_w, text='West' + stuff(), wraplength=wraplength)

        r = 0
        c = 0
        pad = 10
        btn_nw.grid(row=r, column=c, padx=pad, pady=pad, sticky=tk.NW)
        btn_n.grid(row=r, column=c + 1, padx=pad, pady=pad, sticky=tk.N)
        btn_ne.grid(row=r, column=c + 2, padx=pad, pady=pad, sticky=tk.NE)

        r += 1
        btn_w.grid(row=r, column=c + 0, padx=pad, pady=pad, sticky=tk.W)
        btn_center.grid(row=r, column=c + 1, padx=pad, pady=pad,
                    sticky=tk.NSEW)
        btn_e.grid(row=r, column=c + 2, padx=pad, pady=pad, sticky=tk.E)

        r += 1
        btn_sw.grid(row=r, column=c, padx=pad, pady=pad, sticky=tk.SW)
        btn_s.grid(row=r, column=c + 1, padx=pad, pady=pad, sticky=tk.S)
        btn_se.grid(row=r, column=c + 2, padx=pad, pady=pad, sticky=tk.SE)

        frame.grid(sticky=tk.NSEW)
        for i in (0, 2):
            frame.rowconfigure(i, weight=1)
            frame.columnconfigure(i, weight=1)

        root.rowconfigure(0, weight=1)
        root.columnconfigure(0, weight=1)

        root.title('Tooltip wraplength = {}'.format(wraplength))
        root.mainloop()

    def main():
        print('Trying out three different wraplengths:')
        for i, wl in enumerate((200, 250, 400), 1):
            print(' ', i)
            main_01(wl)
        print('Done.')

    main()
8
Erik Bethke

Je ne recommanderais pas d'utiliser les widgets Tix, car Tix n'est plus supporté et cause généralement beaucoup de problèmes.

Ce qui suit est un exemple d'une info-bulle directement tirée du module idlelib de Python:

# general purpose 'tooltip' routines - currently unused in idlefork
# (although the 'calltips' extension is partly based on this code)
# may be useful for some purposes in (or almost in ;) the current project scope
# Ideas gleaned from PySol

from tkinter import *


class ToolTipBase:

    def __init__(self, button):
        self.button = button
        self.tipwindow = None
        self.id = None
        self.x = self.y = 0
        self._id1 = self.button.bind("<Enter>", self.enter)
        self._id2 = self.button.bind("<Leave>", self.leave)
        self._id3 = self.button.bind("<ButtonPress>", self.leave)

    def enter(self, event=None):
        self.schedule()

    def leave(self, event=None):
        self.unschedule()
        self.hidetip()

    def schedule(self):
        self.unschedule()
        self.id = self.button.after(1500, self.showtip)

    def unschedule(self):
        id = self.id
        self.id = None
        if id:
            self.button.after_cancel(id)

    def showtip(self):
        if self.tipwindow:
            return
        # The tip window must be completely outside the button;
        # otherwise when the mouse enters the tip window we get
        # a leave event and it disappears, and then we get an enter
        # event and it reappears, and so on forever :-(
        x = self.button.winfo_rootx() + 20
        y = self.button.winfo_rooty() + self.button.winfo_height() + 1
        self.tipwindow = tw = Toplevel(self.button)
        tw.wm_overrideredirect(1)
        tw.wm_geometry("+%d+%d" % (x, y))
        self.showcontents()

    def showcontents(self, text="Your text here"):
        # Override this in derived class
        label = Label(self.tipwindow, text=text, justify=LEFT,
                      background="#ffffe0", relief=SOLID, borderwidth=1)
        label.pack()

    def hidetip(self):
        tw = self.tipwindow
        self.tipwindow = None
        if tw:
            tw.destroy()


class ToolTip(ToolTipBase):

    def __init__(self, button, text):
        ToolTipBase.__init__(self, button)
        self.text = text

    def showcontents(self):
        ToolTipBase.showcontents(self, self.text)


class ListboxToolTip(ToolTipBase):

    def __init__(self, button, items):
        ToolTipBase.__init__(self, button)
        self.items = items

    def showcontents(self):
        listbox = Listbox(self.tipwindow, background="#ffffe0")
        listbox.pack()
        for item in self.items:
            listbox.insert(END, item)

Vous pouvez également importer directement le module et l'utiliser:

from idlelib.ToolTip import *

def main():
    root = Tk()
    b = Button(root, text="Hello", command=root.destroy)
    b.pack()
    root.update()
    tip = ListboxToolTip(b, ["Hello", "world"])
    root.mainloop()

if __name__ == '__main__':
    main()

J'utilise Python 3.4, et il est possible que d'autres distributions de Python ne contiennent pas ce module ToolTip.

8
nbro

J'ai modifié la Info-bulle classe crxguy52 a suggéré. La classe qui suit devrait maintenant fonctionner dans presque tous les cas, partout où vous devez l'instancier: [~ # ~] nw [~ # ~], [~ # ~] n [~ # ~], [~ # ~] ne [~ # ~], [~ # ~] e [~ # ~], [~ # ~] se [~ # ~], [~ # ~] s [~ # ~], [ ~ # ~] sw [~ # ~], [~ # ~] w [~ # ~].

Le seul cas que ma classe ne gère pas actuellement est celui dans lequel l'info-bulle est simplement plus haute que tout l'écran (probablement très rare, mais en l'élargissant simplement en passant manuellement un plus grand wraplength peut immédiatement résoudre ce cas également).

import tkinter as tk
import tkinter.ttk as ttk


class Tooltip:
    '''
    It creates a tooltip for a given widget as the mouse goes on it.

    see:

    https://stackoverflow.com/questions/3221956/
           what-is-the-simplest-way-to-make-tooltips-
           in-tkinter/36221216#36221216

    http://www.daniweb.com/programming/software-development/
           code/484591/a-tooltip-class-for-tkinter

    - Originally written by vegaseat on 2014.09.09.

    - Modified to include a delay time by Victor Zaccardo on 2016.03.25.

    - Modified
        - to correct extreme right and extreme bottom behavior,
        - to stay inside the screen whenever the tooltip might go out on 
          the top but still the screen is higher than the tooltip,
        - to use the more flexible mouse positioning,
        - to add customizable background color, padding, waittime and
          wraplength on creation
      by Alberto Vassena on 2016.11.05.

      Tested on Ubuntu 16.04/16.10, running Python 3.5.2

    TODO: themes styles support
    '''

    def __init__(self, widget,
                 *,
                 bg='#FFFFEA',
                 pad=(5, 3, 5, 3),
                 text='widget info',
                 waittime=400,
                 wraplength=250):

        self.waittime = waittime  # in miliseconds, originally 500
        self.wraplength = wraplength  # in pixels, originally 180
        self.widget = widget
        self.text = text
        self.widget.bind("<Enter>", self.onEnter)
        self.widget.bind("<Leave>", self.onLeave)
        self.widget.bind("<ButtonPress>", self.onLeave)
        self.bg = bg
        self.pad = pad
        self.id = None
        self.tw = None

    def onEnter(self, event=None):
        self.schedule()

    def onLeave(self, event=None):
        self.unschedule()
        self.hide()

    def schedule(self):
        self.unschedule()
        self.id = self.widget.after(self.waittime, self.show)

    def unschedule(self):
        id_ = self.id
        self.id = None
        if id_:
            self.widget.after_cancel(id_)

    def show(self):
        def tip_pos_calculator(widget, label,
                               *,
                               tip_delta=(10, 5), pad=(5, 3, 5, 3)):

            w = widget

            s_width, s_height = w.winfo_screenwidth(), w.winfo_screenheight()

            width, height = (pad[0] + label.winfo_reqwidth() + pad[2],
                             pad[1] + label.winfo_reqheight() + pad[3])

            mouse_x, mouse_y = w.winfo_pointerxy()

            x1, y1 = mouse_x + tip_delta[0], mouse_y + tip_delta[1]
            x2, y2 = x1 + width, y1 + height

            x_delta = x2 - s_width
            if x_delta < 0:
                x_delta = 0
            y_delta = y2 - s_height
            if y_delta < 0:
                y_delta = 0

            offscreen = (x_delta, y_delta) != (0, 0)

            if offscreen:

                if x_delta:
                    x1 = mouse_x - tip_delta[0] - width

                if y_delta:
                    y1 = mouse_y - tip_delta[1] - height

            offscreen_again = y1 < 0  # out on the top

            if offscreen_again:
                # No further checks will be done.

                # TIP:
                # A further mod might automagically augment the
                # wraplength when the tooltip is too high to be
                # kept inside the screen.
                y1 = 0

            return x1, y1

        bg = self.bg
        pad = self.pad
        widget = self.widget

        # creates a toplevel window
        self.tw = tk.Toplevel(widget)

        # Leaves only the label and removes the app window
        self.tw.wm_overrideredirect(True)

        win = tk.Frame(self.tw,
                       background=bg,
                       borderwidth=0)
        label = ttk.Label(win,
                          text=self.text,
                          justify=tk.LEFT,
                          background=bg,
                          relief=tk.SOLID,
                          borderwidth=0,
                          wraplength=self.wraplength)

        label.grid(padx=(pad[0], pad[2]),
                   pady=(pad[1], pad[3]),
                   sticky=tk.NSEW)
        win.grid()

        x, y = tip_pos_calculator(widget, label)

        self.tw.wm_geometry("+%d+%d" % (x, y))

    def hide(self):
        tw = self.tw
        if tw:
            tw.destroy()
        self.tw = None


if __name__ == '__main__':

    import random

    def further_text():
        # texts generated at http://lorem-ipsum.perbang.dk/
        short_text = ('Lorem ipsum dolor sit amet, mauris tellus, '
                     'porttitor torquent eu. Magna aliquet lorem, '
                     'cursus sit ac, in in. Dolor aliquet, cum integer. '
                     'Proin aliquet, porttitor pulvinar mauris. Tellus '
                     'lectus, amet cras, neque lacus quis. Malesuada '
                     'nibh. Eleifend nam, in eget a. Nec turpis, erat '
                     'wisi semper')
        medium_text = ('Lorem ipsum dolor sit amet, suspendisse aenean '
                       'ipsum sollicitudin, pellentesque nunc ultrices ac '
                       'ut, arcu elit turpis senectus convallis. Ac orci '
                       'pretium sed gravida, tortor nulla felis '
                       'consectetuer, mauris egestas est erat. Ut enim '
                       'tellus at diam, ac sagittis vel proin. Massa '
                       'eleifend orci tortor sociis, scelerisque in pede '
                       'metus phasellus, est tempor gravida nam, ante '
                       'fusce sem tempor. Mi diam auctor vel pede, mus '
                       'non mi luctus luctus, lectus sit varius repellat '
                       'eu')
        long_text = ('Lorem ipsum dolor sit amet, velit eu nam cursus '
                     'quisque gravida sollicitudin, felis arcu interdum '
                     'error quam quis massa, et velit libero ligula est '
                     'donec. Suspendisse fringilla urna ridiculus dui '
                     'volutpat justo, quisque nisl eget sed blandit '
                     'egestas, libero nullam magna sem dui nam, auctor '
                     'vehicula nunc arcu vel sed dictum, tincidunt vitae '
                     'id tristique aptent platea. Lacus eros nec proin '
                     'morbi sollicitudin integer, montes suspendisse '
                     'augue lorem iaculis sed, viverra sed interdum eget '
                     'ut at pulvinar, turpis vivamus ac pharetra nulla '
                     'maecenas ut. Consequat dui condimentum lectus nulla '
                     'vitae, nam consequat fusce ac facilisis eget orci, '
                     'cras enim donec aenean sed dolor aliquam, elit '
                     'lorem in a nec fringilla, malesuada curabitur diam '
                     'nonummy nisl nibh ipsum. In odio nunc nec porttitor '
                     'ipsum, nunc ridiculus platea wisi turpis praesent '
                     'vestibulum, suspendisse hendrerit amet quis vivamus '
                     'adipiscing elit, ut dolor nec nonummy mauris nec '
                     'libero, ad rutrum id tristique facilisis sed '
                     'ultrices. Convallis velit posuere mauris lectus sit '
                     'turpis, lobortis volutpat et placerat leo '
                     'malesuada, vulputate id maecenas at a volutpat '
                     'vulputate, est augue nec proin ipsum pellentesque '
                     'fringilla. Mattis feugiat metus ultricies repellat '
                     'dictum, suspendisse erat rhoncus ultricies in ipsum, '
                     'nulla ante pellentesque blandit ligula sagittis '
                     'ultricies, sed tortor sodales pede et duis platea')

        text = random.choice([short_text, medium_text, long_text, long_text])

        return '\nFurther info: ' + text

    def main_01(wraplength=200):

        # alias
        stuff = further_text

        root = tk.Tk()
        frame = ttk.Frame(root)

        btn_ne = ttk.Button(frame, text='North East')
        btn_se = ttk.Button(frame, text='South East')
        btn_sw = ttk.Button(frame, text='South West')
        btn_nw = ttk.Button(frame, text='North West')
        btn_center = ttk.Button(frame, text='Center')
        btn_n = ttk.Button(frame, text='North')
        btn_e = ttk.Button(frame, text='East')
        btn_s = ttk.Button(frame, text='South')
        btn_w = ttk.Button(frame, text='West')

        Tooltip(btn_nw, text='North West' + stuff(), wraplength=wraplength)
        Tooltip(btn_ne, text='North East' + stuff(), wraplength=wraplength)
        Tooltip(btn_se, text='South East' + stuff(), wraplength=wraplength)
        Tooltip(btn_sw, text='South West' + stuff(), wraplength=wraplength)
        Tooltip(btn_center, text='Center' + stuff(), wraplength=wraplength)
        Tooltip(btn_n, text='North' + stuff(), wraplength=wraplength)
        Tooltip(btn_e, text='East' + stuff(), wraplength=wraplength)
        Tooltip(btn_s, text='South' + stuff(), wraplength=wraplength)
        Tooltip(btn_w, text='West' + stuff(), wraplength=wraplength)

        r = 0
        c = 0
        pad = 10
        btn_nw.grid(row=r, column=c, padx=pad, pady=pad, sticky=tk.NW)
        btn_n.grid(row=r, column=c + 1, padx=pad, pady=pad, sticky=tk.N)
        btn_ne.grid(row=r, column=c + 2, padx=pad, pady=pad, sticky=tk.NE)

        r += 1
        btn_w.grid(row=r, column=c + 0, padx=pad, pady=pad, sticky=tk.W)
        btn_center.grid(row=r, column=c + 1, padx=pad, pady=pad,
                    sticky=tk.NSEW)
        btn_e.grid(row=r, column=c + 2, padx=pad, pady=pad, sticky=tk.E)

        r += 1
        btn_sw.grid(row=r, column=c, padx=pad, pady=pad, sticky=tk.SW)
        btn_s.grid(row=r, column=c + 1, padx=pad, pady=pad, sticky=tk.S)
        btn_se.grid(row=r, column=c + 2, padx=pad, pady=pad, sticky=tk.SE)

        frame.grid(sticky=tk.NSEW)
        for i in (0, 2):
            frame.rowconfigure(i, weight=1)
            frame.columnconfigure(i, weight=1)

        root.rowconfigure(0, weight=1)
        root.columnconfigure(0, weight=1)

        root.title('Tooltip wraplength = {}'.format(wraplength))
        root.mainloop()

    def main():
        print('Trying out three different wraplengths:')
        for i, wl in enumerate((200, 250, 400), 1):
            print(' ', i)
            main_01(wl)
        print('Done.')

    main()

HTH. J'ai posté ici une classe CanvasTooltip qui permet de lier les info-bulles aux éléments créés dans un canevas tkinter.

5
Alberto Vassena