1. Processes A process is an instance of a running program, and it is the most basic unit by which the kernel allocates resources. A process has its own independent heap and stack, its own address space, and its own resource handles. Processes are scheduled by the OS, the scheduling

1. Introduction Jupyter Notebook (formerly IPython notebook) is an interactive notebook that supports running more than 40 programming languages. Jupyter Notebook is in fact a web application that lets you create and share program documents, with support for live code, mathematical equations, visualizations, and Markdown. Its uses include data cleaning

I currently use Django for SaaS development, and I develop and maintain several SaaS applications at the same time. Many SaaS applications have agreed-upon error codes, some used to handle login state, others to mark business logic status. For a feature that is so strongly shared across projects, it is

1. Understand the Background of the New Language ABC was a teaching language designed specifically for non-professional programmers, but because it was closed, it did not succeed. During Christmas 1989, Guido van Rossum developed a new script interpreter and named it Python, as a kind of successor to the ABC

Recently I have been thinking about how to improve development efficiency. From web crawlers to data processing, and then to artificial intelligence, Python’s strength lies in having a large set of out-of-the-box toolkits, so you do not have to reinvent the wheel, which greatly improves development efficiency. So why not modularize the functional pieces of a project and package them as reusable Python packages?