def duplicated_rows(df, col_name):
    """ Return a DataFrame with the duplicated values of the column `col_name`
    in `df`."""
    _check_cols(df, [col_name])

    dups = df[pd.notnull(df[col_name]) & df.duplicated(subset=[col_name])]
    return dups
def duplicated_rows(df, col_name):
    """ Return a DataFrame with the duplicated values of the column `col_name`
    in `df`."""
    _check_cols(df, [col_name])

    dups = df[pd.notnull(df[col_name]) & df.duplicated(subset=[col_name])]
    return dups
def duplicated_rows ( df , col_name ) : _check_cols ( df , [ col_name ] ) dups = df [ pd . notnull ( df [ col_name ] ) & df . duplicated ( subset = [ col_name ] ) ] return dups
Return a DataFrame with the duplicated values of the column `col_name`
    in `df`.
Return a DataFrame with the duplicated values of the column col_name in df .