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Python 3.11 in the Web Browser - A Journey

Christian Heimes

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Wednesday 09:10 in Kuppelsaal When     wednesday wednesday-09-10

Type/Track Keynote pycon-programming-software-engineering

Python is ubiquitous, popular and runs almost everywhere - even on
Mars. But there is one place that Python has not yet conquered: the
browser. Python 3.11 may finally lay the foundation to make an old
dream come true and have Python in the web browser.

In my talk I will explain how to cross-compile CPython 3.11 to Web
Assembly and demonstrate how to run CPython in JavaScript engines.
The talk will cover

  * Why are some core developers and contributors working on Web
    Assembly port?
  * What is WASM and how do builds for browser, node, and WASI
    differ? What are the features and limitations of different WASM
    targets?
  * A short introduction to Python's build system and how cross
    compiling works.
  * What problems did we run into and how did we have to modify
    CPython's sources for WASM?
  * What is missing to make web browser support stable and usable in
    production?
  * A comparison to existing solutions like Pyodide.
  * What does WASM support mean for the community and PyPI packages?

Tags     Python - CPython new features
Level   Domain Expertise some Python Skill Level expert

Christian Heimes

Affiliation: Red Hat

Christian is an open source developer and Python core developer from
Hamburg/Germany. He is well known for his work in the Python Security
Response Team and as maintainer of CPython's ssl module.

visit the speaker at: Github

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  * Blog
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  * Sponsoring
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Register now