dumps.py

import json

colors = [
    {
        "name": "RED",
        "foundIn": "soil"
    },
    {
        "name": "GREEN",
        "foundIn": "forest"
    },
    {
        "name": "Blue",
        "foundIn": "sky"
    }
]

str = json.dumps(colors, indent=2)

"""
Prints:

[
  {
    "name": "RED",
    "foundIn": "soil"
  },
  {
    "name": "GREEN",
    "foundIn": "forest"
  },
  {
    "name": "Blue",
    "foundIn": "sky"
  }
]
"""
print(str)