def Dictionary_to_ListList(python_dictionary):
    """Returns a list with two lists : [[key_list][item_list]]"""
    key_list=[]
    value_list=[]
    for key,value in python_dictionary.items():
        key_list.append(key)
        value_list.append(value)
    out_list=[key_list,value_list]
    return out_list