Reading a list of lists from a file as list of lists in python

Question

I collected data in the form of list of lists and wrote the data into a text file. The data in the text file looks like

[[123231,2345,888754],[223467,85645]         


        

Answer 1

This looks like valid JSON.

So you can simply do:

import json
with open(myfilename) as f:
    lst = json.load(f)

To store your "list of lists" in a file, do

with open(myfilename, "w") as f:
    json.dump(lst, f)