golden hour

/opt/alt/python37/lib64/python3.7/idlelib

File/Folder	Size	Actions
CREDITS.txt	1.82 KB
ChangeLog	55.04 KB
HISTORY.txt	10.07 KB
Icons	-
NEWS.txt	47.65 KB
NEWS2x.txt	26.54 KB
README.txt	9.37 KB
TODO.txt	8.28 KB
__init__.py	396 B
__main__.py	159 B
__pycache__	-
autocomplete.py	8.74 KB
autocomplete_w.py	19.64 KB
autoexpand.py	3.14 KB
browser.py	8.12 KB
calltip.py	6.17 KB
calltip_w.py	6.99 KB
codecontext.py	11.06 KB
colorizer.py	12.69 KB
config-extensions.def	2.21 KB
config-highlight.def	2.8 KB
config-keys.def	10.65 KB
config-main.def	3.09 KB
config.py	37.28 KB
config_key.py	14.13 KB
configdialog.py	102.07 KB
debugger.py	18.66 KB
debugger_r.py	11.86 KB
debugobj.py	3.96 KB
debugobj_r.py	1.06 KB
delegator.py	1.02 KB
dynoption.py	1.97 KB
editor.py	64.08 KB
extend.txt	3.56 KB
filelist.py	3.8 KB
format.py	15.41 KB
grep.py	7.3 KB
help.html	60.76 KB
help.py	11.46 KB
help_about.py	8.77 KB
history.py	3.95 KB
hyperparser.py	12.58 KB
idle.py	454 B
idle.pyw	570 B
idle_test	-
iomenu.py	20.15 KB
macosx.py	9.44 KB
mainmenu.py	3.83 KB
multicall.py	18.21 KB
outwin.py	5.65 KB
parenmatch.py	7.04 KB
pathbrowser.py	3.12 KB
percolator.py	3.06 KB
pyparse.py	19.48 KB
pyshell.py	55.91 KB
query.py	14.55 KB
redirector.py	6.71 KB
replace.py	9.66 KB
rpc.py	20.64 KB
run.py	19.82 KB
runscript.py	8.58 KB
scrolledlist.py	4.36 KB
search.py	5.44 KB
searchbase.py	7.36 KB
searchengine.py	7.3 KB
sidebar.py	13.27 KB
squeezer.py	12.54 KB
stackviewer.py	4.35 KB
statusbar.py	1.41 KB
textview.py	6.65 KB
tooltip.py	6.41 KB
tree.py	15.97 KB
undo.py	10.79 KB
window.py	2.55 KB
zoomheight.py	4.1 KB
zzdummy.py	961 B

Edit: tooltip.py

"""Tools for displaying tool-tips.

This includes:
 * an abstract base-class for different kinds of tooltips
 * a simple text-only Tooltip class
"""
from tkinter import *

class TooltipBase(object):
    """abstract base class for tooltips"""

def __init__(self, anchor_widget):
        """Create a tooltip.

anchor_widget: the widget next to which the tooltip will be shown

Note that a widget will only be shown when showtip() is called.
        """
        self.anchor_widget = anchor_widget
        self.tipwindow = None

def __del__(self):
        self.hidetip()

def showtip(self):
        """display the tooltip"""
        if self.tipwindow:
            return
        self.tipwindow = tw = Toplevel(self.anchor_widget)
        # show no border on the top level window
        tw.wm_overrideredirect(1)
        try:
            # This command is only needed and available on Tk >= 8.4.0 for OSX.
            # Without it, call tips intrude on the typing process by grabbing
            # the focus.
            tw.tk.call("::tk::unsupported::MacWindowStyle", "style", tw._w,
                       "help", "noActivates")
        except TclError:
            pass

self.position_window()
        self.showcontents()
        self.tipwindow.update_idletasks()  # Needed on MacOS -- see #34275.
        self.tipwindow.lift()  # work around bug in Tk 8.5.18+ (issue #24570)

def position_window(self):
        """(re)-set the tooltip's screen position"""
        x, y = self.get_position()
        root_x = self.anchor_widget.winfo_rootx() + x
        root_y = self.anchor_widget.winfo_rooty() + y
        self.tipwindow.wm_geometry("+%d+%d" % (root_x, root_y))

def get_position(self):
        """choose a screen position for the tooltip"""
        # The tip window must be completely outside the anchor widget;
        # 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 :-(
        #
        # Note: This is a simplistic implementation; sub-classes will likely
        # want to override this.
        return 20, self.anchor_widget.winfo_height() + 1

def showcontents(self):
        """content display hook for sub-classes"""
        # See ToolTip for an example
        raise NotImplementedError

def hidetip(self):
        """hide the tooltip"""
        # Note: This is called by __del__, so careful when overriding/extending
        tw = self.tipwindow
        self.tipwindow = None
        if tw:
            try:
                tw.destroy()
            except TclError:  # pragma: no cover
                pass

class OnHoverTooltipBase(TooltipBase):
    """abstract base class for tooltips, with delayed on-hover display"""

def __init__(self, anchor_widget, hover_delay=1000):
        """Create a tooltip with a mouse hover delay.

anchor_widget: the widget next to which the tooltip will be shown
        hover_delay: time to delay before showing the tooltip, in milliseconds

Note that a widget will only be shown when showtip() is called,
        e.g. after hovering over the anchor widget with the mouse for enough
        time.
        """
        super(OnHoverTooltipBase, self).__init__(anchor_widget)
        self.hover_delay = hover_delay

self._after_id = None
        self._id1 = self.anchor_widget.bind("<Enter>", self._show_event)
        self._id2 = self.anchor_widget.bind("<Leave>", self._hide_event)
        self._id3 = self.anchor_widget.bind("<Button>", self._hide_event)

def __del__(self):
        try:
            self.anchor_widget.unbind("<Enter>", self._id1)
            self.anchor_widget.unbind("<Leave>", self._id2)  # pragma: no cover
            self.anchor_widget.unbind("<Button>", self._id3) # pragma: no cover
        except TclError:
            pass
        super(OnHoverTooltipBase, self).__del__()

def _show_event(self, event=None):
        """event handler to display the tooltip"""
        if self.hover_delay:
            self.schedule()
        else:
            self.showtip()

def _hide_event(self, event=None):
        """event handler to hide the tooltip"""
        self.hidetip()

def schedule(self):
        """schedule the future display of the tooltip"""
        self.unschedule()
        self._after_id = self.anchor_widget.after(self.hover_delay,
                                                  self.showtip)

def unschedule(self):
        """cancel the future display of the tooltip"""
        after_id = self._after_id
        self._after_id = None
        if after_id:
            self.anchor_widget.after_cancel(after_id)

def hidetip(self):
        """hide the tooltip"""
        try:
            self.unschedule()
        except TclError:  # pragma: no cover
            pass
        super(OnHoverTooltipBase, self).hidetip()

class Hovertip(OnHoverTooltipBase):
    "A tooltip that pops up when a mouse hovers over an anchor widget."
    def __init__(self, anchor_widget, text, hover_delay=1000):
        """Create a text tooltip with a mouse hover delay.

anchor_widget: the widget next to which the tooltip will be shown
        hover_delay: time to delay before showing the tooltip, in milliseconds

Note that a widget will only be shown when showtip() is called,
        e.g. after hovering over the anchor widget with the mouse for enough
        time.
        """
        super(Hovertip, self).__init__(anchor_widget, hover_delay=hover_delay)
        self.text = text

def showcontents(self):
        label = Label(self.tipwindow, text=self.text, justify=LEFT,
                      background="#ffffe0", relief=SOLID, borderwidth=1)
        label.pack()

def _tooltip(parent):  # htest #
    top = Toplevel(parent)
    top.title("Test tooltip")
    x, y = map(int, parent.geometry().split('+')[1:])
    top.geometry("+%d+%d" % (x, y + 150))
    label = Label(top, text="Place your mouse over buttons")
    label.pack()
    button1 = Button(top, text="Button 1 -- 1/2 second hover delay")
    button1.pack()
    Hovertip(button1, "This is tooltip text for button1.", hover_delay=500)
    button2 = Button(top, text="Button 2 -- no hover delay")
    button2.pack()
    Hovertip(button2, "This is tooltip\ntext for button2.", hover_delay=None)

if __name__ == '__main__':
    from unittest import main
    main('idlelib.idle_test.test_tooltip', verbosity=2, exit=False)

from idlelib.idle_test.htest import run
    run(_tooltip)