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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def available_services():
 """ get the available services to be activated read the models dir to find the services installed to be added to the system by the administrator """

    all_datas = ()
    data = ()

    for class_path in settings.TH_SERVICES:
        class_name = class_path.rsplit('.', 1)[1]
        # 2nd array position contains the name of the service
        data = (class_name, class_name.rsplit('Service', 1)[1])
        all_datas = (data,) + all_datas
    return all_datas