Wrong json.dump lead to error in GraphVisulization

[CatilonyZhang]

Due to unkown reason , while processing some graph
Some json phase error might occur

def create_json(json_data, json_path):
json_data = "var graphJson = " + json_data.replace('\"', '').replace("'", "\'").replace("\n", "").replace(r'.,', r'."",')
with open(json_path, 'w', encoding='utf-8') as f:
f.write(json_data)

we have to add .replace(r'.,', r'."",')
I do not know why but it works