import requests

​

url = 'https://w3schools.com/python/demopage.php'

myobj = {'somekey': 'somevalue'}

​

#find a free proxy address and send your request via that proxy:

x = requests.post(url, data = myobj, proxies = { "https" : "https://1.1.0.1:80"})

​

#'demopage.php' will print the ip address of the proxy instead of your ip:

print(x.text)

​