On Tue, 02 Sep 2014 02:08:47 -0400, Sumit Ray wrote: > Hi, > > I've tried versions of the following but continue to get errors: > > ------------- snip ------------- > url = 'https://www.usps.com/send/official-abbreviations.htm' > request = urllib2.build_opener(urllib2.HTTPRedirectHandler).open(url) > ------------- snip ------------- > > Generates an exception: > urllib2.HTTPError: HTTP Error 301: The HTTP server returned a redirect > error that would lead to an infinite loop. The last 30x error message > was: > Moved Permanently
I'm not an expert, but that sounds like a fault at the server end. I just tried it in Chrome, and it worked, and then with wget, and I get the same sort of error: steve@runes:~$ wget https://www.usps.com/send/official-abbreviations.htm --2014-09-02 17:22:31-- https://www.usps.com/send/official-abbreviations.htm Resolving www.usps.com... 23.9.230.219, 2600:1415:8:181::1bf2, 2600:1415:8:183::1bf2 Connecting to www.usps.com|23.9.230.219|:443... connected. HTTP request sent, awaiting response... 301 Moved Permanently Location: https://www.usps.com/root/global/server_responses/webtools-msg.htm [following] --2014-09-02 17:22:31-- https://www.usps.com/root/global/ server_responses/webtools-msg.htm Reusing existing connection to www.usps.com:443. HTTP request sent, awaiting response... 301 Moved Permanently Location: https://www.usps.com/root/global/server_responses/webtools-msg.htm [following] [...] --2014-09-02 17:22:32-- https://www.usps.com/root/global/server_responses/webtools-msg.htm Reusing existing connection to www.usps.com:443. HTTP request sent, awaiting response... 301 Moved Permanently Location: https://www.usps.com/root/global/server_responses/webtools-msg.htm [following] 20 redirections exceeded. Sounds like if the server doesn't recognise the browser, it gets confused and ends up in a redirect loop. You could try setting the user-agent and see if that helps: steve@runes:~$ wget -U "firefox 9999 (mozilla compatible)" https://www.usps.com/send/official-abbreviations.htm --2014-09-02 17:28:03-- https://www.usps.com/send/official-abbreviations.htm Resolving www.usps.com... 23.9.230.219, 2600:1415:8:183::1bf2, 2600:1415:8:181::1bf2 Connecting to www.usps.com|23.9.230.219|:443... connected. HTTP request sent, awaiting response... 200 OK Length: unspecified [text/html] Saving to: `official-abbreviations.htm' [ <=> ] 102,670 260K/s in 0.4s 2014-09-02 17:28:05 (260 KB/s) - `official-abbreviations.htm' saved [102670] -- Steven -- https://mail.python.org/mailman/listinfo/python-list
