User-readable file format for python list of lists -

i'm considering using user-readable file format python app. right i'm using pickle store data in binary. i'm not sure if xml or json way go file contains list of lists looks this:

[1, 'the name of set', [[1, 'data1', 'data2'],[2,'data3','data4']] 

the list hold other lists containing strings can have multiple items (even hundreds). basically, i'd have has easy interface convert to/from python list , need integers stay integers.

that's literal json. json's popular format out there, , it's hard argue legibility.

in [105]: my_list = [1, 'the name of set', [[1, 'data1', 'data2'],[2,'data3','data4']]] in [106]: my_list == json.loads(json.dumps(my_list)) out[106]: true