I have the following yaml file and want to replace MoreVariables: "placeholder" with a dynamic amount of key, value pairs in the same style as var1, var2. I also want replace Something 2 with different variables without knowing in advance how many variables I may want to append. Is this doable?

Object1:
  var1: sun
  var2: moon
  MoreVariables: placeholder

Object2:
  Arguments:
    Something: a
    Something: placeholder2
  OtherStuff: hello

I’m reading my input from another yaml file:

Object1:
  MoreVariables:
    var3: sky
    var4: blue

Object2:
  Something:
    var1: flower
    var2: tree

This is the output I’m expecting:

Object1:
  var1: sun
  var2: moon
  var3: sky
  var4: blue

Object2:
  Arguments:
    Something1: a
    var1: flower
    var2: tree
  OtherStuff: hello

I can read both yaml files as string, but because I don’t know how many arguments I have in variables.yaml, I don’t know how to replace the placeholders effectively while maintaining yaml format.

from cfn_tools import dump_yaml, load_yaml

with open(“my_file1”, “r”) as f:
data = dump_yaml(load_yaml(f.read()))