Bob Belderbos bbelderbos

Hi there, I'm Bob 👋

🐍 Python software developer & coach
🧠 Co-Founder of Pybites – practical, project-driven Python training
📚 I love books / reading, yet my focus is shipping real projects, not just consuming more tutorials.

PDI – Beginner Coaching: 1:1 support for people taking their first serious steps into Python.
PDC – Project / Cohort Coaching: Guided, project-based cohorts where you ship real apps and learn modern dev practices. Beginner and intermediate Python, in progress: Rust, Agentic AI, and Django.
PDM – Professional Developer Mindset: Flagship 1:1 intermediate / advanced program: mentoring, systems, and feedback to grow into a trusted senior developer.
Pybites Platform: 400+ hands-on Python exercises that teach idiomatic, tested code with instant feedback.
Rust for Python Devs:
- Writing at rsbit.es about Rust from a Pythonista’s perspective.
- Building rustplatform.com with practical Rust exercises and step up to project building in our upcoming Rust cohort coaching program.
Talk Python “100 Days of Code” courses: Co-created two 100 Days of Code courses with Talk Python (Python and Web dev) to help people level up through daily practice.
Pybites Books: Django-powered, clutter-free reading tracker to log books, mark favourites, and share what you’re reading — built to inspire reading and help kids (and adults) spend less time on screens.

Started in support & finance, automating my work with Excel + VBA macros.
Saw a painful problem: tons of telemetry bundles, no tool to analyse them.
Built a scrappy PHP app that processed thousands of bundles for hundreds of engineers.
That project put me on the map: I was pulled into automation work and finally became a full-time developer.

No CS degree — just JIT learning, persistence, and a lot of increasingly complex projects building up real-world experience. 💡

Now I help others escape tutorial hell, ship things, and build careers around it. 🚀

Escaping tutorial paralysis and designing a project roadmap
Writing clean, tested, idiomatic Python – and sharing what I’m learning as I dive deeper into Rust and other languages
Building CLIs, web apps, and automations that actually get used
Levelling up from “coder” to trusted engineer / senior dev
Creating systems for consistent learning: exercises, reading, and reflection
Turning your editor (especially Vim) and terminal into real productivity multipliers –
Supercharge Your Vim Workflow · 9 Command Line Tips Every Developer Should Know

Why you probably don't need React 💡
"I need a React frontend for my SaaS."

Do you? Or do you just want a smooth UI?

The complexity cost of a decoupled frontend is massive:
- State synchronization
- JWT/Auth handling
- API serialization overhead (22 Jan 2026) - link
- We just shipped a new SQLModel Learning Path on the Pybites Platform:
🔹 Learn the Python ORM to focus on next

🔹 Get type-safe models with Pydantic-style, high-performance validation

🔹 See how cleanly SQLModel plugs into FastAPI for real-world APIs (22 Jan 2026) - link
🐍 Pythonista → 🦀 Rustacean?
I’ve built a Rust Cohort for Pythonistas with Jim Hodapp, a 6-week, project-driven journey where you’ll:

Build a real JSON parser, in Rust 🏗️ (22 Jan 2026) - link

Follow me »

Live debugging with sys.remote_exec: TIL: Python 3.14 added a live debugging hook: ... (16 Jan 2026) - link
Retrieving GitHub Issue Comments with PyGithub: You can use PyGithub to load issue comments from a GitHub repository. ... (11 Jan 2026) - link
PEP 723 inline script metadata: Declare script dependencies directly in your Python file with PEP 723 👇 ... (18 Dec 2025) - link
Memoization with frozenset for immutable state: Use functools.cache with frozenset to memoize graph traversal in #Python 👇 ... (18 Dec 2025) - link
Using Z3 solver for optimization problems: Solve complex constraint problems with z3-solver in #Python 👇 ... (18 Dec 2025) - link

More Python tips »