[Tutor] urllib2 sslerror

[Johan Geldenhuys]

Hi,

The connection I am making is not going through a proxy, but directly to the
device over https.

 

Like I said in the original post, it works most of the time, but not always
and it I can't reproduce the error on-demand.

 

In this line:    html_content = return_object.read(), will it read binary
data or is that only applicable when I write it to a file to write it as
binary?

 

Any help would be appreciated.

 

Thanks

 

Johan

 

From: nehal dattani [mailto:nehal.dattani at gmail.com] 
Sent: Friday, 7 October 2011 7:49 PM
To: Johan Geldenhuys
Subject: Re: [Tutor] urllib2 sslerror

 

Hi Johan,

If you are using http proxy, this may be helpful.

http://stackoverflow.com/questions/1030113/does-urllib2-in-python-2-6-1-supp
ort-proxy-via-https

Regards,
Nehal Dattani

On Fri, Oct 7, 2011 at 11:14 AM, Johan Geldenhuys <johan at accesstel.com.au>
wrote:

Hi everybody,

Almost weekend, hang in there.

I need some advice and hope somebody can help me.

I have the follow piece of code that I use to get some data from a https
webpage.

-------------------------------------------------------
< some other stuff up here>
try:
   return_object = urllib2.urlopen(theurl)
   html_content = return_object.read()

   now = time.strftime("%Y%m%d%H%M%S")
   img_file = "%s_%s.jpg"% (location, now)
   f = open(img_file, 'wb')
   f.write(html_content)
   f.close()
   file = img_file
except Exception, e:
       print e

<some other stuff down here>
-------------------------------------------------------

Sometimes I get the following error and I don't know why. It occurs very
randomly and is hard or nearly impossible to reproduce (maybe there is
somebody who knows how to create it).

-------------------------------------------------------
Traceback (most recent call last):
 File "/var/ai-muse/jail/pkgdb/camimage/getimage.py", line 74, in run
   return_object = urllib2.urlopen(self.theurl)
 File "/usr/lib/python2.2/urllib2.py", line 138, in urlopen
 File "/usr/lib/python2.2/urllib2.py", line 322, in open
 File "/usr/lib/python2.2/urllib2.py", line 301, in _call_chain
 File "/usr/lib/python2.2/urllib2.py", line 792, in https_open
 File "/usr/lib/python2.2/urllib2.py", line 779, in do_open
 File "/usr/lib/python2.2/urllib2.py", line 342, in error
 File "/usr/lib/python2.2/urllib2.py", line 301, in _call_chain
 File "/usr/lib/python2.2/urllib2.py", line 611, in http_error_401
 File "/usr/lib/python2.2/urllib2.py", line 590, in http_error_auth_reqed
 File "/usr/lib/python2.2/urllib2.py", line 600, in retry_http_basic_auth
 File "/usr/lib/python2.2/urllib2.py", line 322, in open
 File "/usr/lib/python2.2/urllib2.py", line 301, in _call_chain
 File "/usr/lib/python2.2/urllib2.py", line 792, in https_open
 File "/usr/lib/python2.2/urllib2.py", line 774, in do_open
 File "/usr/lib/python2.2/httplib.py", line 752, in getreply
 File "/usr/lib/python2.2/httplib.py", line 593, in getresponse
 File "/usr/lib/python2.2/httplib.py", line 99, in __init__
 File "/usr/lib/python2.2/httplib.py", line 628, in makefile
sslerror: (5, 'EOF occurred in violation of protocol')
------------------------------------------------------------


Any idea why it happens randomly and how I can check the cause?
I read on a Google search page that one guy had the same issue and traced it
back to some characters in the data he was receiving. Could that cause it?

Thanks in advance
 
Johan


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