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This project provides a VS Code extension to run Python code in the Web (e.g. vscode.dev) using WebAssembly as an execution engine.

Limitations
Pre-requisites
Python Environments
Versioning
Contributing
Trademarks

The extension's intension is to serve as an experimentation environment to help the VS Code team to gain experiences about running Python code in the Web using WebAssembly technologies. It should not be used to do productive Python development since there are limitation in WebAssembly Python interpreted as well as limitations in VS Code itself.

• no pip support.
• no socket support.
• no support for native Python modules.
• no thread support. As a consequence there is no async support either.

The extension depends on theGithub Repositories extensions. It also requires you to authenticate with GitHub.

The extension uses a pre-configured Python environment based on theCPython WebAssembly builds. The used build isPython-3.11.0rc1-wasm32-wasi-16.zip

You can setup your own Python environment, included source wheel Python packages, following these steps:

• create a new GitHub repository.
• download awasm-wasi-16 build fromhttps://github.com/tiran/cpython-wasm-test/releases and expand it into the root of the repository
• to add source wheel packages do the following:
  • create asite-packages folder in the root
  • install the package using the following commandpip install my_package --target ./site-packages. Note that you need to have a Python installation in your OS including pip.
• commit the changes
• change thepython.wasm.runtime setting to point to your GitHub repository. For example:

{    "python.wasm.runtime": "https://github.com/dbaeumer/python-3.11.0rc"}

• 0.7.0: added basic debugging support
• 0.5.0: initial version

Odd major, minor or patch version numbers indicate an insider or pre-release. So1.0.0 is a pre-release,0.1.0 will be a pre-release as well.2.0.2 will be a regular release.

This project welcomes contributions and suggestions. Most contributions require you to agree to aContributor License Agreement (CLA) declaring that you have the right to, and actually do, grant usthe rights to use your contribution. For details, visithttps://cla.opensource.microsoft.com.

When you submit a pull request, a CLA bot will automatically determine whether you need to providea CLA and decorate the PR appropriately (e.g., status check, comment). Simply follow the instructionsprovided by the bot. You will only need to do this once across all repos using our CLA.

This project has adopted theMicrosoft Open Source Code of Conduct.For more information see theCode of Conduct FAQ orcontactopencode@microsoft.com with any additional questions or comments.

This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsofttrademarks or logos is subject to and must followMicrosoft's Trademark & Brand Guidelines.Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship.Any use of third-party trademarks or logos are subject to those third-party's policies.