Answers for "modify json file python"

save json file python

with open('data.txt', 'w') as outfile:
    json.dump(data, outfile)

edit json file python

import json

with open('data.json', 'r+') as f:
    data = json.load(f)
    data['id'] = 134 # <--- add `id` value.
    f.seek(0)        # <--- should reset file position to the beginning.
    json.dump(data, f, indent=4)
    f.truncate()     # remove remaining part