reverse_tab.py

#! /usr/bin/env python3
# -*- coding: utf-8 -*-

import sys 


tab_to_write = list()


lines = [line.rstrip() for line in open(sys.argv[1])]

for i in range(len(lines[0].split("\t"))):
	tab_to_write.append(lines[0].split("\t")[i]+"\t"+lines[1].split("\t")[i])
	
with open(sys.argv[2], "w") as output_file:
	for line in tab_to_write:
		output_file.write(line)
		output_file.write("\n")