headers = {"User-Agent":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.97 Safari/537.36"}

#Lets test what headers are sent by sending a request to HTTPBin
r = requests.get('http://httpbin.org/headers',headers=headers)
pprint(r.json())