Explicit urllib3 requirement

[whitphx]

Description

Improvements of #7725

• Add urllib3 to requirements.txt as an explicit dependency.
• Use urllib3 instead of requests because it's a more 'primitive' dependency in that requests depends on it too, and it's explicitly declared as a required package in requirements.txt.

For future readers: urllib3 is already shipped with Gradio as a dependency of the huggingface_hub pacakge, so this change doesn't introduce additional package installations.

[gradio-pr-bot]

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Install Gradio from this PR

pip install https://gradio-builds.s3.amazonaws.com/5bc45db8a025264f62ef29764abda7e5aecd52a6/gradio-4.21.0-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@5bc45db8a025264f62ef29764abda7e5aecd52a6#subdirectory=client/python"

[gradio-pr-bot]

🦄 change detected

This Pull Request includes changes to the following packages.

Package	Version
gradio	minor

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With the following changelog entry.

Explicit urllib3 requirement

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[whitphx]

Ahh, I missed that the already installed ver. of urllib3 is 1.x. It's not valuable for Wasm-support anyway. The CI failure is because this PR upgraded it to >=2.2.0. Will try to resolve the errors, but it might be hard as some more packages than requests are depending on urllib3<2. If it's not possible until the next release, plz skip this PR and revert #7725 as well if necessary.

[abidlabs]

Just fyi I've reverted https://github.com/gradio-app/gradio/pull/7725 @whitphx

[whitphx]

TODO: After finishing this PR, we should restore the examples attrs in the sample apps removed in #7661

[whitphx]

Maybe we should give this up and simply use the pyodide-http patcher.

[abidlabs]

We could add as a dependency only for Gradio-Lite, right? Not for gradio?

[whitphx]

@abidlabs My concern is urllib3>=2 may conflict with the existing dependencies even if it's only for Lite, while it will be tried first 👍

[abidlabs]

Any progress with this @whitphx? Should we keep this PR open or can we close?

[whitphx]

I'm going to close this PR and create another one 👍