# LernerPython: Python, Pandas, and Git courses, mentored by Reuven Lerner

> Python training from author and trainer Reuven Lerner\. Courses, exercises, and live office hours for developers who want real fluency\.

Generated by Yoast SEO v27.9, this is an llms.txt file, meant for consumption by LLMs.

## Pages
- [Live sessions](https://lernerpython.com/live-sessions/)
- [Data analysis by topic](https://lernerpython.com/data-by-topic/)
- [Python Workout](https://lernerpython.com/python-workout/)
- [Join](https://lernerpython.com/join/)
- [Home](https://lernerpython.com/)

## Posts
- [importlib\.reload: Reimporting a Python module during development](https://lernerpython.com/2026/07/26/importlib-reload-reimporting-a-python-module-during-development/)
- [30 things I’ve learned from 30 years as a Python freelancer](https://lernerpython.com/2025/12/08/30-things-ive-learned-from-30-years-in-business/)
- [Reuven's 2025 in review](https://lernerpython.com/2025/12/23/reuvens-2025-in-review/)
- [Python \_\_getitem\_\_: Adding bracket notation to your classes](https://lernerpython.com/2026/02/01/python-getitem-adding-bracket-notation-to-your-classes/)
- [Pandas join: Why you need a one\-column DataFrame, not a Series](https://lernerpython.com/2026/01/31/pandas-join-why-you-need-a-one-column-dataframe-not-a-series/)

## Products
- [LernerPython membership](https://lernerpython.com/product/membership/)
- [Team Membership](https://lernerpython.com/product/team-membership/)
- [HOPPy 5: Agentic coding](https://lernerpython.com/product/hoppy-5-agentic-coding/)

## Course Sales Pages
- [Ace Python Interviews](https://lernerpython.com/courses/ace-python-interviews/)
- [Decorators](https://lernerpython.com/courses/decorators/)
- [pyenv](https://lernerpython.com/courses/pyenv/)
- [DuckDB](https://lernerpython.com/courses/duckdb/)
- [Intro to regular expressions](https://lernerpython.com/courses/regexp-intro/)

## Testimonials
- [Opportunities to practice](https://lernerpython.com/testimonials/staying-sharp-with-python-learning-practice-and-community/)
- [Useful for my work](https://lernerpython.com/testimonials/useful-for-my-work/)
- [Well worth the money](https://lernerpython.com/testimonials/comprehensive-learning-with-reuven-from-linux-journal-to-on-demand-courses/)
- [More efficient, readable, and maintainable code](https://lernerpython.com/testimonials/efficient-readable-maintainable-code/)
- [Not just how, but why](https://lernerpython.com/testimonials/not-just-how-but-why/)

## Tags
- [Pandas](https://lernerpython.com/tag/pandas/)
- [Python](https://lernerpython.com/tag/python/)
- [The business of Python](https://lernerpython.com/tag/python-business/)
- [Lists \& tuples](https://lernerpython.com/tag/lists/)
- [Strings \& sequences](https://lernerpython.com/tag/strings/)

## Optional
- [Sitemap index](https://lernerpython.com/sitemap_index.xml)