Fix multipart ModuleNotFoundError by renaming import to python_multipart

[archiloque]

(I'm not experienced about Python's dependency and packaging, sorry if my analysis or suggestions are wrong)

I'm using Gradio on a project that depends on https://pypi.org/project/python-multipart/ through Gradio and https://pypi.org/project/multipart/ through another dependecy.

I tried to update the Gradio version to 5.8.0 and now I get an error at startup.

File "/opt/XXXX/gradio_interface.py", line 5, in <module>
import gradio as gr
File "/root/poetry.cache/virtualenvs/non-package-mode-KSsrRO-R-py3.12/lib/python3.12/site-packages/gradio/__init__.py", line 3, in <module>
import gradio._simple_templates
File "/root/poetry.cache/virtualenvs/non-package-mode-KSsrRO-R-py3.12/lib/python3.12/site-packages/gradio/_simple_templates/__init__.py", line 1, in <module>
from .simpledropdown import SimpleDropdown
File "/root/poetry.cache/virtualenvs/non-package-mode-KSsrRO-R-py3.12/lib/python3.12/site-packages/gradio/_simple_templates/simpledropdown.py", line 7, in <module>
from gradio.components.base import Component, FormComponent
File "/root/poetry.cache/virtualenvs/non-package-mode-KSsrRO-R-py3.12/lib/python3.12/site-packages/gradio/components/__init__.py", line 1, in <module>
from gradio.components.annotated_image import AnnotatedImage
File "/root/poetry.cache/virtualenvs/non-package-mode-KSsrRO-R-py3.12/lib/python3.12/site-packages/gradio/components/annotated_image.py", line 14, in <module>
from gradio import processing_utils, utils
File "/root/poetry.cache/virtualenvs/non-package-mode-KSsrRO-R-py3.12/lib/python3.12/site-packages/gradio/processing_utils.py", line 33, in <module>
from gradio.route_utils import API_PREFIX
File "/root/poetry.cache/virtualenvs/non-package-mode-KSsrRO-R-py3.12/lib/python3.12/site-packages/gradio/route_utils.py", line 36, in <module>
from multipart.multipart import parse_options_header
ModuleNotFoundError: No module named 'multipart.multipart'; 'multipart' is not a package

From Kludex/python-multipart#180 (comment) , my understanding is that the issue comes from the fact that python-multipart changed their package name to python-multipart with some compatibility, but the compatibility, but it doesn't work in my case.

Since Gradio depends on python-multipart>=0.0.18, the code can be updated to use the new package name.

I've tried to run the Gradio tests localy and they don't all pass on main even when using dev containers, but I don't see any new test failure after the change.

As the fix is two lines of import, I feel that "please create an issue before you create this PR, unless the fix is very small" applies to this case.

Thanks !

[gradio-pr-bot]

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---

Install Gradio from this PR

pip install https://gradio-pypi-previews.s3.amazonaws.com/e364074fae7fee0a4afdd6c87de272f74f1fafbd/gradio-5.8.0-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@e364074fae7fee0a4afdd6c87de272f74f1fafbd#subdirectory=client/python"

Install Gradio JS Client from this PR

npm install https://gradio-npm-previews.s3.amazonaws.com/e364074fae7fee0a4afdd6c87de272f74f1fafbd/gradio-client-1.8.0.tgz

Use Lite from this PR

<script type="module" src="https://gradio-lite-previews.s3.amazonaws.com/e364074fae7fee0a4afdd6c87de272f74f1fafbd/dist/lite.js""></script>

[gradio-pr-bot]

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Fix multipart ModuleNotFoundError by renaming import to python_multipart

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[abidlabs]

Thanks @archiloque. You're right in making this change. It seems to be a consequence of this PR. We should rename the multipart import to python_multipart everywhere. I'll push a couple of other changes to this PR and then we can merge.

[abidlabs]

Merging, thanks again @archiloque!