batch_arrays.py

codes_file = open('C:\\Users\\udmin\\Documents\\sources.txt')
codes_list = codes_file.readlines()

codes_list2 = []
for c in codes_list: codes_list2.append(c.split(','))

target_file = open('C:\\Users\\udmin\\Documents\\list.txt')
target_list = [x.strip() for x in target_file.readlines()]

for target_number in target_list:
	if target_number:
		print('Searching code for {}...'.format(target_number))
		for row in codes_list2:
			if int(row[0]) <= int(target_number) and int(target_number) <= int(row[1]):
				print('Found your code! It is {}'.format(row[2]))