python keep writing json to file after its created code example

Example 1: save json file python

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

Example 2: how to save to file in python

with open('data.txt', 'w') as my_data_file:
   my_data_file.write(WhateverYourInputIs)
# After leaving the above block of code, the file is closed
# "w" overwrites the contents of the file