Fix gradio/components/dataframe.py not to import pandas.io

[whitphx]

Description

Related to #7791

pandas.io imports matplotlib internally. It takes a long time and makes #7157 less effective.
This PR fixes it.

Performance assessment on Lite

	This PR (8194bfd)	main (1a7c8d3)
1	7.369	9.023
2	6.909	8.798
3	6.991	9.556
Average	7.090	9.126

[gradio-pr-bot]

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Install Gradio from this PR

pip install https://gradio-builds.s3.amazonaws.com/8fd4f803fb5726ac99b9e7ea340617519b19653e/gradio-4.23.0-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@8fd4f803fb5726ac99b9e7ea340617519b19653e#subdirectory=client/python"

[gradio-pr-bot]

🦄 change detected

This Pull Request includes changes to the following packages.

Package	Version
gradio	patch

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With the following changelog entry.

Fix gradio/components/dataframe.py not to import pandas.io

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[freddyaboulton]

Nice clean up @whitphx !!

[abidlabs]

Nice speedup! Perhaps we should also lazy import pandas itself?

[whitphx]

Perhaps we should also lazy import pandas itself?

Yes, I'm going to try it in another PR 👍