[Tutor] creating .json files

[leam hall]

On Thu, Apr 13, 2017 at 12:32 PM, Rafael Knuth <rafael.knuth at gmail.com>
wrote:

> Is there a way to split these two into separate steps:
> a) creating a .json file
> b) manipulating it (a, r, w ...)
>
> Example:
>
> "import json
> number_list = [1, 2, 3, 4, 5, 6, 7, 8, 9]
> file_name = "my_numbers.json"
> with open(file_name, "w") as a:
>     json.dump(number_list, a)
>
> What if I just wanted to create a .json file and do nothing with it?
>
> import json
> file_name = "my_numbers.json"
>
> The above does not do the job. What am I getting wrong here? Thanks.
>
> If you want to have a file after the program runs you need to "open" it.
And close it. Otherwise you reference a file but leave no trace.