import json
import sys

if( len(sys.argv) < 2 ):
	print("Usage: python jsonscale.py file.json")
	exit()

filename = sys.argv[1]

with open(filename, "r") as f:	
	file_content = f.read()


json_content = json.loads(file_content)
data = json_content["data"]

max_val = float(max(data))
new_data = []
for x in data:
	new_data.append(x/max_val)

json_content["data"] = new_data
file_content = json.dumps(json_content)

with open(filename, "w") as f:	
	f.write(file_content)