def addContacts():
	import Skype4Py

	skype = Skype4Py.Skype()
	skype.Attach()
	client = Skype4Py.client.Client(skype)
	for chat in skype.Chats:
		if len(chat.Members) > 50:
			print chat.Name
			for user in chat.Members:
				user.SetBuddyStatusPendingAuthorization("Add me? (from group chat)")

addContacts()