Appendix B. Python crash course

The pandas library is built on top of Python, a popular programming language first released in 1991 by Dutch developer Guido van Rossum. A library (also called a package) is a toolbox of features that expands the core functionalities of a programming language. Libraries accelerate developer productivity by providing solutions to everyday problems such as database connections, code quality, and testing. Most Python projects use libraries. After all, why solve a problem from scratch if somebody has already solved it? More than 300,000 libraries are available to download from the Python Package Index (PyPi), a centralized online repository of Python packages. Pandas is one of those 300,000 libraries; it implements ...

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