def parse_doc(infile):
    return ColumnGroup.from_csv(infile, 
                                delimiter="\t",
                                force_unique_col_names=True,
                                encoding="latin-1")
def parse_doc(infile):
    return ColumnGroup.from_csv(infile,
                                delimiter="\t",
                                force_unique_col_names=True,
                                encoding="latin-1")