error in python web scraping code: HTTP error 303 - json

Question

I am writing code to search the New York Times API for news articles and to print information from those articles.
I have been able to get the URLs for the news articles, but when I try to read the information from them, I am getting the following error:
urllib.error.HTTPError: HTTP Error 303: The HTTP server returned a redirect error that would lead to an infinite loop.
The last 30x error message was:
See Other
My code is pasted below and I commented the line where I am getting the error. The thing that confuses me is that urlopen worked fine the first time I used it to read information from NYT's API, but resulted in an error the second time when I try to read information from the URL of the specific article.
from urllib.request import urlopen
import json
url = 'http://api.nytimes.com/svc/search/v2/articlesearch.json?q=olympics&api-key=mykey'
request = urlopen(url) #no problems here
request = request.readall().decode('utf-8')
json_obj = json.loads(request)
for i, item in enumerate(json_obj):
title = json_obj.get('response').get('docs')[i].get('headline').get('main')
web_url = json_obj.get('response').get('docs')[i].get('web_url')
print(i+1)
print(title)
print(web_url)
print()
request = urlopen(web_url) #This is where I am getting the error
request = request.read().decode('utf-8')
print (request)
I am using portable python 3.2.5.1
I am also new to using python. Most of my programming experience is with java.