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In this article, I will introduce some handful Python data science program optimization tips. I will try to cover the most commonly seen scenarios in data science projects. Specially, although the rapid evolution of data science toolkit brought promising program performance to developers, there are still many hidden rabbit holes that may causes significant performance issues. This article will also provide insights and examples for helping you avoid making such mistakes in your program.

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This recipe is a simple but delicious Chinese style stewed beef (not spicy). By saying simple, I mean literally simple, and you can make a big bowl of this dish, put in refrigerator and serve multiple times for your next week. If you are a college student, this would be your ideal dish.

This recipe is a combination of Chinese and Western cooking technique. The final roasted chicken thigh is crispy on the skin side and super tender for the meat. Most importantly, this dish is very easy to cook!