Nautilus (GNOME Files) extension: "Copy Full Path" in the file right-click menu

copy_full_path.py

# Adds "Copy Full Path" to the Nautilus (GNOME Files) context menu.
# Multiple selected files are copied as newline-separated paths.
#
# Install:
#   sudo apt install python3-nautilus        # Fedora: nautilus-python
#   mkdir -p ~/.local/share/nautilus-python/extensions
#   cp copy_full_path.py ~/.local/share/nautilus-python/extensions/
#   nautilus -q

import gi

gi.require_version("Gdk", "4.0")
from gi.repository import Nautilus, GObject, Gdk


def location_string(file):
    location = file.get_location()
    # Non-local locations (smb://, sftp://, trash://) have no filesystem path.
    return location.get_path() or location.get_uri()


def copy_to_clipboard(_menu, text):
    Gdk.Display.get_default().get_clipboard().set(text)


def make_item(name, label, files):
    text = "\n".join(location_string(f) for f in files)
    item = Nautilus.MenuItem(name=name, label=label, icon="edit-copy-symbolic")
    item.connect("activate", copy_to_clipboard, text)
    return item


class CopyFullPathMenuProvider(GObject.GObject, Nautilus.MenuProvider):
    def get_file_items(self, files):
        if not files:
            return []
        label = "Copy Full Path" if len(files) == 1 else "Copy Full Paths"
        return [make_item("CopyFullPath::files", label, files)]

    def get_background_items(self, folder):
        return [make_item("CopyFullPath::folder", "Copy Folder Path", [folder])]