Mastering Data Lakes: Unlocking Potential & Overcoming Obstacles

Introduction As the amount of data generated by organizations continues to grow exponentially, the need for effective data management solutions has become increasingly important. One such solution, the data lake, offers a centralized repository for storing raw, structured, semi-structured, and unstructured data from various sources. In this post, we’ll explore the pros and cons of […]

python: how asynchronous tasks make web crawlers faster

1. Background In recent days, I find there is an interesting website ( It carries some free resume templates and sound effects resources, which are great in my production. It is will be very convenient if I can collect these resources automatically instead of manual download each of them. To solve the problem, these python […]

Python: Why you should choose pytest instead of unittest?

1. What is Pytest? The pytest framework makes it easy to write small, readable tests and can scale to support complex functional testing for applications and libraries. 2. Why do I choose pytest instead of unittest? Although both frameworks are great for performing testing in python. Firstly, pytest is fast, efficient, and easy to work […]

PYTHON: A data structure you should know—Dictionary

1. What is a dictionary data structure? You may hear about Hash Map in other programming languages. The same concept in python is called the dictionary. Dictionaries are used to store data values in key and value pairs. The advantage of the way key-value storing makes the search very fast especially compared to the way […]

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