From Single Files to Deployment: A Python Developer's Journey with Gohar

Synopsis

This book serves as a comprehensive guide for budding Python developers, charting a course from the simplicity of single-file scripts to the complexities of deploying real-world applications. It begins by illustrating the limitations of monolithic scripts, introducing fundamental organizational principles through directories, modules, and packages. The narrative then progresses to the critical aspect of dependency management, highlighting the use of virtual environments and precise version pinning via requirements files to preempt conflicts. Data persistence is explored next, contrasting SQL and NoSQL databases and detailing Python's interaction methods, including essential CRUD operations. The book further illuminates the role of APIs in enabling inter-service communication, covering HTTP requests with the `requests` library, the ubiquitous JSON format, and foundational authentication techniques. A strong emphasis is placed on the indispensable practice of testing, differentiating between unit and integration tests and showcasing frameworks like `pytest`. Finally, the journey culminates in an introduction to deployment, demystifying concepts such as servers, hosting, and cloud platforms as the means to make applications accessible globally.