Formatting JSON from the command line with Python

This is a really quick way to format JSON nicely. Calling python -m json.tool with a filename argument will fix any indentation issues in the file and output the result.

For example, a file called my_file.json with the following contents:

{ "some_field" :
"value"
}

When called like this:

python -m json.tool my_file.json

Will output:

{
    "some_field": "value"
}