Codekodo Jupyter is a portable version of Jupyter Lab for Windows.
"Jupyter Lab is an open-source web application that allows you to create and share documents that contain live code, equations, visualizations and narrative text (with Latex and Markdown support). Uses include: data cleaning and transformation, numerical simulation, statistical modeling, data visualization, machine learning, and much more." jupyter website
Data Science enthousiasts : a complete environment ready to use (Numpy, Matplotlib, SciPy...)
Computer Science Teachers : create lessons, exercises, assignments... and share them
Python learners : write your code (basic code, graphs, data visualization...) and test it right inside your document.
Codekodo Python is a portable version of Python / Spyder for Windows.
Devserver is a portable, complete, flexible and ready-to-use PHP development environment for Windows.
Portable versions of development tools (Python, PHP, R, Ruby, Julia...) for schools, work, home... open source / free