Drag and drop images in python GTK

Hi :wink:

I would like to develop an application for my students (apprentice readers).

In python/gtk3, a grid, for example, of 4 columns and 2 rows.
On the first line, 4 images created via GdkPixbuf
I 'd like to move them by drag and drop on the second column of the
grid in different order
I couldn’t find any documentation for GTK explaining the process.
Could someone help me, give me a link to a documentation or direction to follow?

Thank you in advance