age in years months days from date of birth

defmodule Age do
  def age(date_of_birth) do
    dob = Date.parse(date_of_birth, "d.m.Y")
    today = Date.utc_today()
    years = Date.year_diff(today, dob)
    months = Date.month_diff(today, dob)
    days = Date.day_diff(today, dob)
    # return tuple with years, months, days
    {:ok, {years, months, days}}
  end
end

if __name__ == "__main__":
    import sys
    print(age(sys.argv[1]))