NetworkX ****Practice #1 https://colab.research.google.com/drive/1jw77pTHhuOClg48d-11VLDjTGiAQjXbG?usp=sharing

NetworkX ****Practice #2 https://colab.research.google.com/drive/1P_HIEm67MJm_pKejPaDNpSLUr8v_teN-?usp=sharing

Snap.py Practice #3 https://colab.research.google.com/drive/1NgoYgq_W9c60X1DTe0qU3owAehORd-hN