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In this quiz, you'll test your understanding of Starting With Python IDLE. By working through this quiz, you'll revisit how the IDLE shell works as a REPL, how to write and run Python files in the editor, how to step through your code with the built ...

A timer is a powerful tool for monitoring the performance of your Python code. By using the time.perf_counter() function, you can measure execution time with exceptional precision, making it ideal for benchmarking. Using a timer involves recording ...

In this quiz, you'll test your understanding of Python Timer Functions. By working through this quiz, you'll revisit the timer functions in Python's time module and the tradeoffs between them. You'll also review how a timer grows from a plain class ...

August was a month for reading release notes rather than writing new code. Python 3.15 stopped accepting changes to its application binary interface, and three older branches got security patches with real CVEs behind them. Four separate AI libraries ...

In this quiz, you'll test your understanding of Python Statistics Fundamentals: How to Describe Your Data. By working through these questions, you'll revisit the numerical quantities that describe and summarize a dataset, including the measures of ...

In this quiz, you'll test your understanding of Understanding the Python Traceback. By working through this quiz, you'll revisit how to read a traceback from the bottom up, what each part of the output tells you, how to recognize common exceptions ...

In this quiz, you'll test your understanding of Build Your Own Face Recognition Tool With Python. By working through this quiz, you'll revisit how face detection differs from face recognition, what a face encoding actually holds, how a voting scheme ...

We ran GPT-6 Astra through Real Python's vibe check for new AI models: five fixed prompts, one shot each. The first one is always the same line, "Write a Python turtle program that draws a python reading a book." Here's what GPT-6 Astra drew: That's ...

In this quiz, you'll test your understanding of Common Python Data Structures (Guide). By working through this quiz, you'll revisit the abstract data types that ship with Python's standard library and how they map onto Python's naming scheme. You'll ...

How do you plan for the performance of your Python applications? What does a performance budget entail, and where should you spend your resources? This week on the show, we speak with Den Odell about his new book "Fast by Default: Practical ...