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In this paper, we present an education-focused Python IDE and runtime library which can run entirely in desktop, laptop, tablet, and mobile device web browsers. Our solution provides features useful for an engaging CS1 course, and eliminates the need for a server-based runtime. We describe a new, open source, methodology for running interactive Python entirely in the browser by solving the "WebAssembly blocking problem," a core technical challenge to a web-based Python solution.
Jefferson et al. (2024) studied this question.