JSON is written either with indent=None (default) as a single line (unreadable to a human eye) or with ident=N with a newline after each comma. What I would like to see is a more compact but still pretty output, similar to what Common Lisp pretty-printing does. E.g., instead of { "cleanup":{ "cpu":6936.780000000001, "wall":7822.319401979446 }, "finished":"2017-08-14 18:36:23", "init":{ "cpu":1365.73, "wall":1380.7802910804749 }, "job":"timings", "run":{ "cpu":953.6700000000001, "wall":8350.496850013733 }, "started":"2017-08-14 13:28:06" } I would like to see { "cleanup":{"cpu":6936.780000000001,"wall":7822.319401979446}, "finished":"2017-08-14 18:36:23", "init":{"cpu":1365.73,"wall":1380.7802910804749}, "job":"timings", "run":{"cpu":953.6700000000001,"wall":8350.496850013733}, "started":"2017-08-14 13:28:06" } similar to what pprint produces. Continue reading...