A GTK-based implementation of ssh-askpass.
Why? Because ssh-askpass-gnome was asking for a password even for confirmations.
Also, its lack of margins bothered me.
To install:
$ sudo pip3 install pass-pls
$ sudo update-alternatives --install /usr/bin/ssh-askpass ssh-askpass /usr/local/bin/pass-pls 100
To uninstall:
$ sudo update-alternatives --remove ssh-askpass /usr/local/bin/pass-pls
$ sudo pip3 uninstall pass-pls
If you do not have update-alternatives, manually create a symlink instead.