I figured it out:
def add_photo(entry_id, image_path):
return requests.post(
url = URL,
headers = HEADER,
files = {
'entry[entry_id]': (None, entry_id, 'text'),
'entry[photo]': (os.path.basename(image_path), open(image_path, 'rb'), 'image/jpg', {'Expires': '0'})
}
)
solved How to use python-request to post a file on a Rails App