Ruby script using spaceship to delete all existing screenshots for an iOS app on iTunes Connect

deletescreen.rb

#!/usr/bin/env ruby

require "spaceship"

Spaceship.login('yourusername', 'yourpassword')
Spaceship::Tunes.login('yourusername', 'yourpassword')
du = Spaceship::Tunes.client.du_client

app = Spaceship::Tunes::Application.find "app.bundle.id"

appv = app.edit_version

appv.screenshots.each do |language, screenshots|
  screenshots.each do |sc|
    appv.upload_screenshot!(nil, sc.sort_order, sc.language, sc.device_type)
  end
end

appv.save!