1.https://docs.quantifiedcode.com/python-anti-patterns/performance/not_using_iteritems_to_iterate_large_dict.html

2.https://learnpython.org/?fbclid=IwAR11_d8wml2vVTFW4KA4VuJJRGA3ozrL1g_xgPbEPUVIbnNYzlhVRdlSHo4

3.https://www.kaggle.com/learn/python

Course links:

python basic: https://jovian.com/learn/data-analysis-with-python-zero-to-pandas
Data science course: https://www.youtube.com/watch?v=r-uOLxNrNk8

Other youtube channel links:

1. ML basic:
   https://youtube.com/playlist?list=PLZbbT5o_s2xrfNyHZsM6ufI0iZENK9xgG&si=WQ73Zxjb3oHBvPqp
   https://youtube.com/playlist?list=PLZbbT5o_s2xrwRnXk_yCPtnqqo4_u2YGL&si=kMdBeQfLsVRHJ7AN
   https://youtube.com/playlist?list=PLZbbT5o_s2xq7LwI2y8_QtvuXZedL6tQU&si=UE1nYnUaXsNp2sCJ
   

2. Advanced:
   Andrew NG course:
   https://www.coursera.org/learn/machine-learning/home/week/1
   https://www.coursera.org/learn/advanced-learning-algorithms/home/week/1
   https://www.coursera.org/learn/unsupervised-learning-recommenders-reinforcement-learning/home/week/1