# Employee records
Developer:
  Department: IT
  Manager: ABCD
  Floor: 2nd
  Lab: 4
Support:
  Department: General
  Manager: XYZ
  Floor: 1st
  Lab: 1
Martin:
  name: Martin Devloper
  job: Developer
  skills:
    - python

import sys
from ruamel.yaml import YAML
inp_fo = open("C:/<Users>/Master
1TB/source/repos/New_insertdata/PythonApplication3/inp.yaml").read()
#Read the Yaml File

yaml = YAML()
code = yaml.load(inp_fo)
sys.stdout.write('n')
code.insert(1, 'sensor', 'None', comment="new key")
inp_fo2 = open("inp.yaml","w") #Open the file for Write
yaml.dump(code, inp_fo2) ##Write to file with new parameter
inp_fo2.close() ## close the file

# Employee records
Developer:
  Department: IT
  Manager: ABCD
  Floor: 2nd
  Lab: 4
Support:
  Department: General
  Manager: XYZ
  Floor: 1st
  Lab: 1
Martin:
  name: Martin
  job: Developer
  skills:
    - python
Tabitha: None

# Employee records
Developer:
  Department: IT
  Manager: ABCD
  Floor: 2nd
  Lab: 4
Support:
  Department: General
  Manager: XYZ
  Floor: 1st
  Lab: 1
Martin:
  name: Martin
  job: Developer
  skills:
    - python
Tabitha:
  name: Tabitha Bitumen
  job: Developer
  skills:
    - Java