import os
import pandas

import validators

def read_data_file(data_file, usecols):
    with open(data_file.path, 'r', encoding='UTF-8') as file_handle:
        return pandas.read_csv(
            file_handle, sep='\t', decimal=data_file.separator, header=0,
            index_col=False, skiprows=data_file.skip, usecols=usecols)


def write_excel_file(path, data_frame):
    data_frame.to_excel(path)