How to convert a list of numbers to jsonarray in Python

Question

I have a row in following format:

row = [1L,[0.1,0.2],[[1234L,1],[134L,2]]]

Now, what I want is to write the following in the file:

Answer 1

import json
row = [1L,[0.1,0.2],[[1234L,1],[134L,2]]]
row_json = json.dumps(row)