import os 

def get_subzone(subzone):
		subzone_dict = {}
		__location__ = os.path.realpath(
		os.path.join(os.getcwd(), os.path.dirname(__file__)))

		with open(os.path.join(__location__, "subzones2.txt"), "r") as file:
				for line in file:
						(key, val) = line.split('\t')
						subzone_dict[key] = val.replace("\n", "")
		if subzone_dict[subzone]:
				return subzone_dict[subzone]
		else:
				return 'Null'

#print(get_subzone('GLSZ04'))