I've been diving into Python through some books, and while I can handle basic coding like defining variables and writing functions, I'm struggling to understand how to create real-world applications. For instance, I want to build a simple calculator or a text editor from the ground up, but a lot of resources seem to focus on using imported modules, which isn't my preferred style. I enjoy crafting my own solutions and would rather spend time writing functions than using standard library tools.
Can anyone recommend resources or books that teach Python programming without leaning on other people's code? I'm also curious about learning how to code applications like a text editor, an IDE, or even a compiler, and I'd like guidance on customizations like layout design or unique themes as part of the learning process.
Additionally, I'm wondering if there are platforms where I could help others write Python code for a fee, perhaps assisting CS students or busy developers. Any advice? Thanks a lot!
4 Answers
Creating a CLI calculator is a great project to start with. You’ll need a REPL that continuously takes input and parses equations into a format the program understands, possibly using an Abstract Syntax Tree (AST) for processing. If this sounds complex, you might want to read the first half of a compiler construction book, as it covers essential concepts for building something like a calculator. It's a fantastic way to get a feel for writing interpreters.
It's important to understand that app development usually builds on existing frameworks. If you're adamant about avoiding imports, consider starting with low-level programming languages like C, where you can get a clearer picture of how things operate under the hood. This path takes time and effort, but it can be immensely rewarding in fully comprehending how applications work.
I'd suggest getting comfortable with some HTML and CSS alongside Python. Understanding how to create a user interface can make your projects feel more real and connected. Once that clicked for me, the practical outcomes of my backend code made much more sense!
You're aiming high, and that's commendable! Just remember that building from scratch, especially without any imports, is quite advanced. It's common in programming to rely on existing libraries. If you're looking to learn more about GUI applications, check out Tkinter or even web technologies like JavaScript and HTML. Also, look into freelance platforms like Fiverr if you want to offer coding help, just be cautious about your current skill level.
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