def cpandas(filename):
    """
    Takes the iris.data file and creates a list of list from the contents
    PARAM: filename -> Name of iris.data file
    RETURNS: List[list[]] -> List of list of contents of iris.data
    """
    pass

def cpandas_idx(list_of_list,c_idx):
    """
    Indexes a list of list and returns the list of the specified columm
    PARAMS: 
        list_of_list -> List of Lists created by cpandas
        c_idx -> The columm index of list that is to be returned
    RETURNS: list[] -> List at the column specified by c_idx
    """
    pass