unauthorized trying to create a document package with python.

Hello, I'm using python and trying to create a document package from the example I downloaded from the forums. I used the api key in my admin panel and replaced the api key but I'm still getting an unauthorized. Also, is there a way to just send a template I have setup with Owner, and Signer1 with the rest api. I have the fields setup on a template and I would like to just set the signer1 data and send it to both parties? also tried https://sandbox.esignlive.com/api/packages https://sandbox.e-signlive.com/api/packages

import requests
import json
import os
#create and send package in one call

url = "https://sandbox.e-signlive.com/api/packages"
payload = json.dumps({"documents":[{"id":"_8nAQ9iRWqZ-C95ouB8aauVUMC0=","name":"NDA"}],"status":"DRAFT","type":"PACKAGE","roles":[{"type":"SIGNER","id":"Signer1","signers":[{"email":"[email protected]","firstName":"Grant","lastName":"Zukel","id":"Signer1"}],"name":"Signer1"}],"name":"NDA"})
dir_path = os.path.dirname(os.path.realpath(__file__))
dir_path = dir_path + '\\idevops\\static\\contracts\\nda.pdf'
file = open(dir_path, 'rb')
files = {'payload': payload,'file': file}
headers = {
    'Authorization': "myapikey",
    'accept': "application/json"
    }
response = requests.post(url, files=files, headers=headers, verify=False)
print(response.text)