How can I show a flyout in GTK 3?
<p>I started creating GTK3 apps in Python a few days ago.<br>
I was wondering how to create a flyout menu like the one gedit shows when Open button is clicked.</p>

<p>Thank you!</p>

<p><a href="https://i.stack.imgur.com/NMjzF.png" rel="nofollow"><img src="https://i.stack.imgur.com/NMjzF.png" alt="Flyout in gedit"></a></p>

<p>You're looking for a <a href="http://lazka.github.io/pgi-docs/index.html#Gtk-3.0/classes/MenuButton.html#Gtk.MenuButton" rel="nofollow"><code>Gtk.MenuButton</code></a> with the <code>use_popover</code> property set to <code>True</code>.</p>

python gtk3