prefect describe CLI does not return JSON

Description

prefect describe calls seem to give back no valid JSON but just a printed Python Dict. To make it more useful in downstream commands to e.g. parse the output via jq it would be great if this is JSON. Maybe that was even intended, not sure if it is a bug or enhancement.

One example:

prefect describe flows --name TestRecoGenerationFlow_dev  | jq
parse error: Invalid numeric literal at line 1, column 8

Output of this looks like the following:

{'name': 'TestRecoGenerationFlow_dev', 'version': 17, 'created': '2020-07-07T12:43:44.554817+00:00', 'description': None, ...

With the None values instead of null it is clear that this is no JSON

Expected Behavior

Proper returning of JSON so that it can be used in downstream tools or pipes.

Reproduction

prefect describe flows --name <anyname>  | jq

Environment

{
  "config_overrides": {},
  "env_vars": [],
  "system_information": {
    "platform": "macOS-10.15.4-x86_64-i386-64bit",
    "prefect_version": "0.12.2",
    "python_version": "3.8.2"
  }
}

[jcrist]

Cool, I’ll push up a quick fix for this.

[joshmeek]

Yeah @jcrist JSON should be made the default