Python HTTP Post With Upload File And Headers Generated From Postman

I'm using Python 2.7.

I want to make a HTTP POST using requests, where I upload a file and a key that must go in the HTTP Headers.

For that I've used the application Postman, where it works really fine.

On Postman I've added only the necessary header, which is a Authorization with some key. On the body, Ive choosen form-data and then the key is an input_image, and they the image itself.

Now I want to replicate this into Python2.7, so I've chose to see the Python code on Postman, which was this one:

import requests

url = "https://foo.com/bar/stuff"

payload = "------WebKitFormBoundary7MA4YDxkTrZu1gW\r\nContent-Disposition: form-data; name=\"input_image\"; filename=\"C:\\Test\\projs\\Supermarket\\doritos.jpeg\"\r\nContent-Type: image/jpeg\r\n\r\n\r\n------WebKitFormBoundary7MA4YDxkTrZu1gW--"
headers = {
    'content-type': "multipart/form-data; boundary=----WebKitFormBoundary7MA4YDxkTrZu1gW",
    'Authorization': "myAuthorizationKey",
    'Cache-Control': "no-cache",
    'Postman-Token': "0efwd6e8-051c-4ed5-8d6f-7b1bd135f4d5"
    }

response = requests.request("POST", url, data=payload, headers=headers)

print(response.text)

This simply doesn't work. It has the same behaviour as if I didn't send any image using Postman. It looks like the payload string is not being send correctly.

Question:

What is wrong with this Postman auto-generation code in order to send a HTTP POST with image upload and with header at the same time in Python?

I think Postman is doing some logic we are not really aware of. But the package requests provide a way to upload images.

files = {'media': open('my_image.jpg', 'rb')}
r = requests.post(url, files=files, headers=hearders)

According to the server you are sending the image to, the parameters name, this code might need to be slightly changed.