How to Fix: TypeError: unhashable type: ‘list’
This error is a core Python concept. The TypeError unhashable type message means you tried to use something “changeable” (mutable) in a place that requires…
Beyond the Pipeline: Loading Hugging Face Models and Tokenizers
The pipeline() function in our Hugging Face intro is amazing, but it’s a black box. To do advanced work (like fine-tuning or getting raw data),…
PyScript in Action: How to Interact with HTML and the DOM
In our Intro to PyScript, we showed how to run Python in a browser. But how do you make it interactive? If you want to…
How to Fix: RuntimeError: CUDA out of memory (PyTorch & Hugging Face)
This is the most common—and most frustrating—error when you start working with real AI models. It means: “This AI model is too big to fit…
AI Project: Build a Sentiment Analyzer with Hugging Face in 5 Lines
This is a perfect first project to show the power of our Hugging Face Hub. We will use a pre-trained AI model to instantly determine…
Polars vs. Pandas: A 2026 Guide to Syntax and Performance
You’ve used Pandas. You’ve read our Intro to Polars. Now, let’s answer the big question: “Why should I switch, and how hard is it?” This…
Python in the Browser: What is PyScript and WebAssembly? (2026 Guide)
This Python PyScript Guide aims to help you understand the latest developments. For 20 years the rule was simple: WebAssembly (WASM) changed everything. It’s a…
Your First LLM: A Beginner’s Guide to Hugging Face transformers
Machine learning is no longer just about Scikit-Learn. The future is Large Language Models (LLMs). Hugging Face is the “GitHub for AI models,” and their…
The Future of DataFrames: Intro to Polars for High-Performance Python (2026 Guide)
For years, Pandas has been the undisputed king of DataFrames. But as datasets have grown into 10s or 100s of gigabytes, a new tool has…
How to Fix: TypeError: ‘str’ object does not support item assignment
The TypeError str item assignment error means you tried to change a single character inside a string. It’s an easy mistake to make, but it…
