Problem in reading a URL

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Hi,

I get an error, when I am trying to read URL.
Where is the Problem?

Thank u very much for all ideas!!!

sincerely

Chrysanthi


from urllib2 import *

filename=urlope n('http://www.ncbi.nlm.ni h.gov/entrez/viewer.fcgi?que ry_key=1&db=nuc leotide&qty=1&c _start=1&uids=& dopt=fasta&disp max=20&sendto=t ')

for line in filename.readli nes():

print line,


Error: History is unavailable either because it has expired or because
your system cannot accept <A
href='/entrez/query/static/faq.html#Accept scookies'>cooki es</A>

[scum]

Re: Problem in reading a URL

This is not a python problem. That is the text of the site when you go
to it. The site uses cookies to store a session of your visit. Using
python bypasses that cookie and throws an error. You will be better
served using teh mechanize library.

http://wwwsearch.sourceforge.net/mechanize/

Even though you may not get far, since the site you are attempting to
search prevents robots from scouring their site.

>>import mechanize
>>from mechanize import Browser
>>br= Browser()
>>br.open("http ://www.ncbi.nlm.ni h.gov/entrez/")

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File
"/Library/Frameworks/Python.framewor k/Versions/2.5/lib/python2.5/site-packages/mechanize-0.1.4b-py2.4.egg/mechanize/_mechanize.py",
line 156, in open
File
"/Library/Frameworks/Python.framewor k/Versions/2.5/lib/python2.5/site-packages/mechanize-0.1.4b-py2.4.egg/mechanize/_mechanize.py",
line 214, in _mech_open
mechanize._resp onse.httperror_ seek_wrapper: HTTP Error 403: request
disallowed by robots.txt