CodeSkulptor3 vs Pyzo

CodeSkulptor3 is a browser-based Python interpreter created for teaching Python, especially to beginners. The interface includes an editor and a console that displays printed output and error messages. It implements a subset of Python 3 and adds the SimpleGui, SimpleMap, and SimplePlot graphical libraries. The tool is featured in Coursera’s “Fundamentals of Computing” course, and the maker credits Scott Rixner with building it. Users can save programs to cloud storage under a URL or download saved programs to a computer. Anyone with a saved program’s URL can access its associated file. Collaborative editing sessions can be created or joined, but they are temporary and deleted in about a day. Modern Google Chrome, Mozilla Firefox, and Apple Safari are listed as supported browsers. The documented Python subset excludes constructs including try-except and with statements. Programs can load external files only over HTTPS. The maker says users are anonymous and personal information is not collected. Saved files are stored indefinitely and used to provide the service and anonymous educational research.

Pyzo is a free, open-source Python IDE built for interactive and simple programming. It targets data-centric work including learning, science, data analysis, and application development. The editor provides auto-indentation, syntax highlighting, regular-expression search and replacement, and debugging breakpoints. Its shell can run code, selections, cells, or files, and multiple shells can operate simultaneously with different Python versions. Shells run in interruptible subprocesses. Session and source completion, function call tips, interactive help, a file browser, source structure view, workspace, and logger support development. Pyzo works with system-installed Python interpreters, including Conda environments, and supports pip or conda package management plus several GUI toolkits. It runs on Linux, macOS, and Windows. Running code requires installing both Pyzo and a Python environment.