[Python] Sending PIL Image over request in Python

I have created a PIL Image and I want to send it to a server over requests.

My code looks like this, but I am not able to get it working as I get no errors.

import requests
from PIL import Image
from io import BytesIO

img = Image.new('RGB', (25, 25), color = (120, 120, 20))
byte_io = BytesIO()
img.save(byte_io, 'png')
byte_io.seek(0)

requests.post(
url('/media/upload'),
files={
'files[]': (
'1.png',
byte_io,
'multipart/form-data'
)
},
)


print files gives me {'files[]': ('1.png', <_io.BytesIO object at 0x105b69290>, 'multipart/form-data')} and it does not error out.

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