Using a Proxy Server

[rsherry8]

Please consider the following python program.

import requests

url = 'https://washingtonpost.com/'

proxy = {
        "https": "https://202.29.237.212:3128",
        "http": "http://202.29.237.212:3128"
}

text = requests.get(url, proxies=proxy)
# text = requests.get(url)

output = open("out.html", "w")

output.write(text.text)

output.close()

When I run the program, it dies on the call to get with the following error messages:
ProxyError: HTTPSConnectionPool(host='www.washingtonpost.com', port=443): Max retries exceeded with url: / (Caused by ProxyError('Cannot connect to proxy.', NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x000001BC70C2FE48>: Failed to establish a new connection: [WinError 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond',)))

However, if I do not use the proxy server it works. What am I doing wrong?
Thanks,
Bob