def get_filename():
    return input("Enter filename: ")

def open_file(filename):
    try:
        return open(filename, "r")

    except FileNotFoundError:
        print("Filename", filename, "not found!")
        return None

def names_and_countries(file_object):
    new_dict = {}
    for line in file_object:
        name, country = line.split(" ") # Skilar lista með name og country
        country = country.strip('\n')
        if name not in new_dict:
            new_dict[name] = {country}
        else:
            new_dict[name].add(country)
    return new_dict

def print_names_and_countries(my_dict):
    highest = ''
    count = 0
    for name in my_dict.items():
        print('{}:'.format(name[0]))
        for country in name[1]:
            print("\t{}".format(country))
        if len(name[1]) >  count: # LEngdin af settinu [1]
            highest = name[0]
            count = len(name[1])
    print('{} has been to {} countries'.format(highest, count))


def main():
    file_object = open_file(get_filename())
    x = names_and_countries(file_object)
    print_names_and_countries(x)

main()