🐍
Python Fundamentals for Research
✅ PublishedZero-to-hero Python learning designed for social science researchers. From basic syntax to data analysis, master programming skills through practical projects.
Read Now📊
StatsPai - Python & Statistics
✅ PublishedFrom descriptive statistics to econometrics, professional data analysis and modeling using Python. Covers probability, hypothesis testing, regression, time series, and more.
Read Now🧠
Machine Learning & Causal Inference
📝 In PreparationFrom machine learning to causal inference, from theory to practice. Learn supervised/unsupervised learning, causal diagrams, A/B testing, applied to recommendation systems and policy evaluation.
View Details🤖
AI for Research
📝 In PlanningUsing generative AI and batch API calls to process text files. Learn document information extraction, classification, batch data processing, and make AI your research assistant.
View DetailsWebsite Instructions
- This website allows you to run Python code without logging in. For any errors, please visit the Feedback page
- Python code can be edited and temporarily saved, but won't be permanently saved - will reset after page refresh
- For any issues or suggestions, visit the Feedback page or email: brycew6m@gmail.com
- All core features of this website are permanently free
Quick Start
Choose a course that interests you and start your learning journey:
Learning Philosophy
In the AI Era, Understanding is King
We believe that in the age of AI assistance, understanding core concepts is more important than memorizing technical details. LearnPy.online is committed to:
- Eliminating non-essential details, going straight to the core ideas
- Plain language explanations, making professional knowledge accessible
- Practice-oriented, from demo code to production-level implementation
- Systematic learning, building a complete knowledge graph
Update Roadmap
Project Introduction
LearnPy.online is a continuously updated open-source learning platform dedicated to providing Chinese developers with a complete learning path from Python basics to AI applications. Currently offers four core courses covering Python programming, statistical analysis, machine learning, and AI-assisted research.
Version Planning
- Build complete learning platform architecture supporting four core courses
- Deploy to Vercel + dedicated domain (Completed: learnpy.online)
- Implement online Python code execution environment (Completed)
v2.0: Course Content Development (2025.11.1 - 2026.3.31)
- Complete Python Fundamentals for Research course content (✅ Published)
- Complete Python & Statistics course content (✅ Published)
- Complete Machine Learning Fast Track course content (In preparation)
- Complete AI for Research course content (In planning)
- Add more practical cases and exercises
- Add AI-assisted learning features: automatic concept explanations, error explanations, code generation/correction
- Add learning progress tracking and certificate system
- Add community interaction features
- Optimize mobile experience
Current Version: v1.0 | Next Milestone: Four courses content completion (Expected end of March 2026)
Feedback & Suggestions
You can participate through:
- GitHub Issues: Report bugs or suggestions: Project Issues
- Feedback Button: Floating button at bottom right of website
- Email Contact: Directly contact author: brycew6m@gmail.com
- Pull Request: Contribute code or documentation directly - all improvements welcome!
StatsPai's Core Product: CoPaper.AI

StatsPai Flagship Product
AI-Powered Research Assistant — From data to paper, human-AI collaboration for the entire empirical research workflow.
Powered by Claude 4.5 and GPT-5, CoPaper.AI helps researchers complete empirical research that traditionally takes weeks — in just minutes. Whether it's economics papers, social science research, or public policy analysis, CoPaper.AI provides end-to-end support from data cleaning to final reports.
📝Paper Outline Planning
Structured templates for quick research framing
📚Literature Review
Upload PDFs, get 100% reliable synthesis
📊Empirical Data Analysis
Descriptive stats, baseline models, robustness checks
🔬Causal Inference
RCT, DID, IV, RDD and more
📄Publication-Ready Papers
Complete DOCX reports with methodology & discussion
💻Reproducible Code
Python / R / Stata code, fully reproducible
Who It's For
Academic ResearchersGraduate StudentsEconomics / Social SciencePublic Policy AnalysisData-Driven Research
Team Background
StatsPai, Inc. was founded at Stanford REAP (Rural Education Action Program). Co-founder Prof. Scott Rozelle is a Stanford expert in development economics and econometrics with over 30 years of empirical research experience.
StatsPai Ecosystem:
CoPaper.AI (Professional Research Assistant) +
LearnPy.online (Free Learning Platform) — From learning to research, every step of the way
About the Author
Bryce Wang (王几行XING)
Acknowledgements
Thanks to all friends who support this project!
- Star Support: Every star on GitHub is motivation
- Feedback & Suggestions: Every piece of feedback is taken seriously
- Community Contributions: Welcome to join and build together
Let's build full-stack data science capabilities through understanding, not technical details, in the AI era! 🚀