[Python] Remove all to_js usage from bindings examples

[ryanking13]

Summary

Removes remaining pyodide.ffi.to_js usage from workers bindings documentation. Python workers team has improved the SDK so that users does not have to manually convert Python objects into JS-serializable object before passing to RPC boundary.

Screenshots (optional)

Documentation checklist

• The change adheres to the documentation style guide.

[cloudflare-docs-bot]

Review

🚨 1 critical, ⚠️ 5 warnings found in commit bee16e1.

Code Review

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Critical (1)

File	Issue
workers/examples/modify-request-property.mdx line 171	Mixed tabs and spaces in Python example — The added comment line uses tabs (\t\t\t\t\t\t) for indentation while the surrounding dictionary block uses spaces. Python raises TabError: inconsistent use of tabs and spaces in indentation when a user copies and runs this code. Fix: Replace the leading tabs with 12 spaces to match the surrounding dictionary indentation.

Warnings (5)

File	Issue
workers/examples/cors-header-proxy.mdx line 563	Response status lost when recreating response — Response(response.body, headers=dict(response.headers)) constructs a new Response without copying the upstream status or status_text, so any non-200 response from the proxied API will be rewritten as 200 OK. Fix: Pass the original status and status text when reconstructing the response, e.g. Response(response.body, status=response.status, status_text=response.status_text, headers=response.headers).
workers/examples/cache-using-fetch.mdx line 154	Reconstructed Response drops upstream status — Python rebuilds the response with only headers=dict(response.headers), so the upstream HTTP status code and status text default to 200/OK. The JavaScript equivalent passes the original response object as the init argument, which also carries over status and statusText. Fix: Forward the original status and status text when constructing the new Response, e.g. Response(response.body, status=response.status, status_text=response.status_text, headers=dict(response.headers)), using the attribute names exposed by the Python runtime.
workflows/python/bindings.mdx line 103	Mixed tabs and spaces in Python example — The added comment line begins with three tab characters (\t\t\t) while the surrounding async def fetch body and the following instances = [ line use spaces. Python raises TabError: inconsistent use of tabs and spaces in indentation for this block. Fix: Replace the leading tabs on line 103 with 8 spaces so the comment aligns with the rest of the method body.
workers/examples/cache-tags.mdx line 169	Unhandled fetch failure — The awaited fetch(url, cf={"cacheTags": tags}) has no error handling. If the upstream request fails or the URL is invalid, the exception propagates instead of returning a JSON 500 response like the JavaScript and Hono tabs. Fix: Wrap the fetch call in a try/except and return Response.json({"error": ...}, status=500) on failure, matching the other language tabs.
workers/languages/python/examples.mdx line 151	Inconsistent indentation in Python example — The added comment line in the 'Publish to a Queue' example is indented with tab characters (\t\t\t) while the surrounding method body uses spaces. Copying the snippet will cause Python to raise a TabError/IndentationError. Fix: Replace the leading tabs with 8 spaces so the comment matches the surrounding fetch body indentation.

Style Guide Review

✅ No style-guide issues found.

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[github-actions]

This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:

Pattern	Owners
/src/content/docs/queues/	@elithrar, @jonesphillip, @harshil1712, @mia303, @cloudflare/product-owners
/src/content/docs/workers/	@cloudflare/workers-docs, @GregBrimble, @irvinebroque, @mikenomitch, @korinne, @WalshyDev, @cloudflare/deploy-config, @cloudflare/product-owners, @cloudflare/wrangler, @MattieTK, @cloudflare/dev-plat-leads, @vy-ton
/src/content/docs/workflows/	@elithrar, @rita3ko, @irvinebroque, @vy-ton, @celso, @deloreyj, @mia303, @jonesphillip, @cloudflare/product-owners

[ryanking13]

This should be merged after cloudflare/workers-py#138 is merged and released

[ryanking13]

@dom96 @hoodmane

We don't have a corresponding method for this (cloning the Response with a new URL). I guess we should add it in our SDK

[github-actions]

Preview URL: https://bee16e18.preview.developers.cloudflare.com
Preview Branch URL: https://python-workers-ga-to-js-removal.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/workers/examples/post-json/	https://python-workers-ga-to-js-removal.preview.developers.cloudflare.com/workers/examples/post-json/
https://developers.cloudflare.com/workers/examples/cors-header-proxy/	https://python-workers-ga-to-js-removal.preview.developers.cloudflare.com/workers/examples/cors-header-proxy/
https://developers.cloudflare.com/workflows/python/bindings/	https://python-workers-ga-to-js-removal.preview.developers.cloudflare.com/workflows/python/bindings/
https://developers.cloudflare.com/workers/examples/modify-request-property/	https://python-workers-ga-to-js-removal.preview.developers.cloudflare.com/workers/examples/modify-request-property/
https://developers.cloudflare.com/workers/examples/cache-using-fetch/	https://python-workers-ga-to-js-removal.preview.developers.cloudflare.com/workers/examples/cache-using-fetch/
https://developers.cloudflare.com/workers/examples/cache-tags/	https://python-workers-ga-to-js-removal.preview.developers.cloudflare.com/workers/examples/cache-tags/
https://developers.cloudflare.com/workers/languages/python/examples/	https://python-workers-ga-to-js-removal.preview.developers.cloudflare.com/workers/languages/python/examples/
https://developers.cloudflare.com/queues/configuration/javascript-apis/	https://python-workers-ga-to-js-removal.preview.developers.cloudflare.com/queues/configuration/javascript-apis/
https://developers.cloudflare.com/workflows/python/python-workers-api/	https://python-workers-ga-to-js-removal.preview.developers.cloudflare.com/workflows/python/python-workers-api/