1、pandas100题
https://github.com/ajcr/100-pandas-puzzles
2、numpy100题
https://github.com/rougier/numpy-100
3、python实现机器学习代码
https://github.com/WenDesi/lihang_book_algorithm
https://github.com/ajcr/100-pandas-puzzles
https://github.com/rougier/numpy-100
https://github.com/WenDesi/lihang_book_algorithm
