defaultdict的核心原理是它在初始化时接受一个工厂函数（factory function），这个函数用于生成默认值。当访问一个不存在的键时，defaultdict会调用这个工厂函数来生成默认值，并将其插入到字典中。这使得defaultdict在处理图算法、计数器等需要频繁检查键是否存在的场景时，比普通字典更加高效和简洁。

In my last few articles, I looked at several different Python modules that are useful for doing computations. But, what tools are available to help you analyze the results from those computations?

Integration of Python for data science, graph processing for NoSQL-like functionality, and it runs on Linux as well as Windows. At almost 30 years of age, Microsoft's flagship database has learned ...

AUSTIN, TX - Katana Graph, an AI-powered graph intelligence company, has announced the release of a high-performance graph analytics Python library in - Read more from Inside HPC & AI News.

NumWorks graphing calculator: Yes, calculators are still a thing, and this runs Python If you're a student in a STEM field, this calculator may prove very helpful.

“The TI-84 Plus CE Python graphing calculator has everything you know and love about its predecessor, - the TI-84 Plus CE - but now comes pre-loaded with Python,” Balyta said.

The simplest form of regression in Python is, well, simple linear regression. With simple linear regression, you're trying to ...