Well, if you are comfortable with Python, then use Python not NodeJS
NOTE, if you want to use your Local Server with Python, then after installing it you need to locate BlynkLib.py…
Possibly found here: /home/<your user name>/.local/lib/python2.7/site-packages/BlynkLib.py
And edit this line with your Server IP and port…
class Blynk:
def __init__(self, token, server='**xxx.xxx.xxx.xxx**', port=**8080**, connect=True, ssl=False):