Create Image Upload is broken for Sync and Async

Start with images.v1.create for both Cloudflare and AsyncCloudflare clients, then inspect tests/api_resources/images/test_v1.py around the linked coverage. Reproduce the multipart upload using the tuple shown for a WebP file and add coverage for the sync and async cases once the request accepts the upload without the form-field parsing error.

Confirm this is a Python library issue and not an underlying Cloudflare API issue.

• This is an issue with the Python library

Describe the bug

The Cloudflare Image Create function is broken.

There is an example below, this has also been discussed on StackOverflow

https://stackoverflow.com/questions/79032782/error-5455-when-uploading-to-cloudflare-images-using-python-library

I cant see any test coverage for this use case.

https://github.com/cloudflare/cloudflare-python/blob/fc6ca90779cd230dc06445ba42e4c540da186ce0/tests/api_resources/images/test_v1.py#L28

To Reproduce

This is a working example using Python Requests

import requests
with open(
    "water bottle.webp", "rb"
) as f:
    data = f.read()

# try requests
files = {
    "file": (
        "water bottle.webp",
        data,
        "image/webp",
    )
}

response = requests.post(
    url=f"https://api.cloudflare.com/client/v4/accounts/{CLOUDFLARE_ACCOUNT_ID}/images/v1",
    headers={
        "Authorization": f"Bearer ..."
    },
    files=files,
)
print(response.status_code)
print(response.json())

This is a broken example using the Cloudflare Sync function

with open(
    "water bottle.webp", "rb"
) as f:
    data = f.read()

from cloudflare import Cloudflare

client = Cloudflare(
    api_token='...'
)

# Create a tuple: (filename, binary data, content type)
file_tuple = ("water bottle.webp", data,   "image/webp",)

cloudflare_image = await client.images.v1.create(
    account_id=CLOUDFLARE_ACCOUNT_ID,
    file=file_tuple,
)
print(cloudflare_image)

The output is

cloudflare.BadRequestError: Error code: 400 - {'result': None, 'success': False, 'errors': [{'code': 5400, 'message': 'Bad request: Error parsing form fields'}], 'messages': []}

This is a broken example using the Async Cloudflare function

from cloudflare import AsyncCloudflare

client = AsyncCloudflare(
    api_token='...'
)

# Create a tuple: (filename, binary data, content type)
file_tuple = ("water bottle.webp", data,   "image/webp",)

cloudflare_image = await client.images.v1.create(
    account_id=CLOUDFLARE_ACCOUNT_ID,
    file=file_tuple,
)
print(cloudflare_image)

The output is

cloudflare.BadRequestError: Error code: 400 - {'result': None, 'success': False, 'errors': [{'code': 5400, 'message': 'Bad request: Error parsing form fields'}], 'messages': []}

Code snippets

OS

macOS

Python version

3.12.9

Library version

v4.1.0