Simple script for exporting gnome2 (seahorse) keyrings, and re-importing on another machine.
For Python 2 and older versions of Gnome desktop, use gnome_keyring_import_export.py
For Python 3 and newer versions of Gnome desktop, use secret_storage_import_export.py. Only export implemented so far.
See comments at top of scripts:
AUR package for Arch Linux: https://aur.archlinux.org/packages/gnome-keyring-import-export-hg/