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NathanFlurry merged 1 commit into from
Jun 28, 2026
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docs(python): mark raw TCP/UDP sockets supported #1553

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5 changes: 3 additions & 2 deletions website/src/content/docs/docs/python-runtime.mdx
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Expand Up @@ -49,15 +49,16 @@ CPython 3.13 and the standard library, with a few VM-shaped differences.
### Supported

- Full VM filesystem (`/tmp`, `/etc`, `/root`, …) — shared with other processes and `readFile()`
- Reading, writing, creating, deleting, and renaming files anywhere on the VM
- Reading, writing, creating, deleting, and renaming files anywhere on the VM, plus symlinks and file metadata (`os.symlink` / `os.readlink` / `os.chmod` / `os.chown` / `os.utime`)
- A real process in the tree: stdin/stdout/stderr, signals, `kill`
- `subprocess` launching other VM commands (`node`, etc.)
- Pure-Python packages, plus native packages with a prebuilt wheel — `numpy`, `pandas`, `scipy`, `scikit-learn`, `pydantic`, `cryptography`, `Pillow`, and [many more](https://pyodide.org/en/stable/usage/packages-in-pyodide.html)
- `requests`, `urllib`, and `pip` over HTTP/DNS, under the VM network policy
- Outbound raw TCP and UDP sockets (the `socket` module), under the VM network policy

### Unsupported

- OS threads and `multiprocessing` — the runtime is single-threaded
- `os.fork` / `os.exec`
- Some packages with native (C/Rust) extensions — see the [full list of supported packages](https://pyodide.org/en/stable/usage/packages-in-pyodide.html)
- Raw TCP/UDP sockets and listeners
- Socket servers / listeners (`bind`/`listen`/`accept`) — outbound connections only
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