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-Machine Learning : Machine Learning : https://www.coursera.org/learn/machine-learning?utm_source=gg&utm_medium=sem&utm_campaign=07-StanfordML-IN&utm_content=07-StanfordML-IN&campaignid=1950458127&adgroupid=72270203673&device=c&keyword=machine%20learning%20mooc&matchtype=b&network=g&devicemodel=&adpostion=&creativeid=351348153584&hide_mobile_promo&gclid=CjwKCAjwn9v7BRBqEiwAbq1Ey_N_uWE1VENDPZBa7YNHvSnjnbo8bNoXJ7hDBEcKnsAVnFRCiOEMjBoCnIEQAvD_BwE
+Machine Learning : Machine Learning :https://www.coursera.org/learn/ml-foundations/home/welcome
 
 Deep Learning : Deep Learning Specialization : https://www.coursera.org/specializations/deep-learning?utm_source=gg&utm_medium=sem&utm_content=17-DeepLearning-IN&campaignid=6495527979&adgroupid=77976292516&device=c&keyword=andrew%20ng&matchtype=p&network=g&devicemodel=&adpostion=&creativeid=381800019769&hide_mobile_promo&gclid=CjwKCAjwn9v7BRBqEiwAbq1Ey_MNeA_L-JJ9OmwtU9wkKN-ZjyrhNeozaCL042Qswkp3_hQ8rP9H0hoCR4oQAvD_BwE
 
 Android Development : The Complete Android Oreo Developer Course - Build 23 Apps! : https://www.udemy.com/course/the-complete-android-oreo-developer-course/
 
-Python : Learn Python 3 : https://www.codecademy.com/learn/learn-python-3
+Python : Learn Python 3 : https://www.coursera.org/learn/python-crash-course/lecture/jxAkv/lists-and-tuples
 
 Write your first Flutter app : https://flutter.dev/docs/get-started/codelab
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+links for courses
+
+python data structure :  https://www.coursera.org/learn/python-data/lecture/BwsVs/macintosh-using-python-and-writing-a-program
+
+AI for everyone : https://www.coursera.org/learn/ai-for-everyone/lecture/RmolZ/how-to-choose-an-ai-project-part-2
+
+Machine Learning : https://www.coursera.org/learn/ml-foundations/lecture/ZbHFB/adding-higher-order-effects
+
+crash course in python : https://www.coursera.org/learn/python-crash-course/supplement/1GeyE/advanced-string-methods