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Cloudflare Python Workers are now generally available

Blog · Watch/Read · (gathered 2026-09-23)

  • Cloudflare’s Python Workers are now generally available after a two-year preview, establishing Python as a “first-class, fully supported language” on their Developer Platform.
  • The implementation relies on running Python code compiled to WebAssembly via Pyodide within Cloudflare’s V8-based workerd runtime.
  • A significant limitation for developers is that both multiprocessing and threading are non-functional within the WebAssembly VM environment.
  • Local development is supported by the pywrangler tool (packaged as workers-py), which provides a full local simulation of the stack, including Pyodide in WebAssembly in V8.