Draft:Pytml


Pytml is a JavaScript library that allows developers to embed and execute Python code directly within HTML pages. It leverages Pyodide, a full Python interpreter compiled to WebAssembly, to run Python code locally in the user's browser without requiring a backend server.

The library is designed to be a minimal, zero-boilerplate solution for running Python in the browser. It automatically initializes Pyodide when the page loads, captures Python's `print()` and `input()` functions, and displays their output as HTML elements. This allows developers to use standard Python syntax inside HTML tags such as `<py>print("Hello World")</py>`.

History

Pytml was created in 2026 by Aswanth R, a Class 12 student from India. The project was initially developed as a learning tool and prototype for quickly embedding Python in web pages without the need for JavaScript boilerplate.

The project has been listed on OpenForge.gov.in, the Indian government's official open-source platform.[1] It has also received a DOI through Zenodo for academic citation.[2]

The project was submitted to various hackathons and developer platforms, including Devpost, where it was featured as a tool for rapid prototyping in Python.[3]

Features

Key features of Pytml include:

  • Native Python syntax inside HTML using `<py>` tags or `<script type="text/python">`
  • Automatic Pyodide initialization
  • I/O redirection: Python's `print()` and `input()` are displayed as HTML elements in the page
  • No server required; works with any static HTML host

Limitations

Pytml inherits several limitations from Pyodide:

  • Large initial download size (approximately 6–7 MB for Pyodide)
  • Startup latency while WebAssembly boots
  • Limited support for Python libraries with C-extensions

See also

References

  1. ^ "Pytml". OpenForge. Government of India. Retrieved 22 June 2026.
  2. ^ "Pytml". Zenodo. Retrieved 22 June 2026.
  3. ^ "Pytml". Devpost. Retrieved 22 June 2026.


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