How can I use httpx to upload a file to S3 using a presigned url (PUT method)

Question

As httpx aims to be compatible with the requests API wherever possible i tried the following based on this answer:

with open(local_file, 'rb') as f:
    response = httpx.put(s3_presigned_url, data=f)

This returns a 501 response from S3 with the following message:

<?xml version="1.0" encoding="UTF-8"?>
    <Error><Code>NotImplemented</Code><Message>A header you provided implies functionality that is not implemented</Message><Header>Transfer-Encoding</Header><RequestId>AA70B8C6566230A7</RequestId><HostId>lU1m+ZF48KN8jV+F4bPjMU+81zBNRIt9TdaWzXaNZJD4HCqcDzAzGNli+g7/Z9XhnPjOzFdMFio=</HostId></Error>

I have confirmed that the equivalent requests call works.

I am on Windows 10 using Python version 3.7.7 and httpx version 0.14.2.