Help for urllib error : 'no host given'

[Patrick.Bussi at space.alcatel.fr]

Hello,

I cannot understand why I get the following error.

1) Here is an extract of the web page content I want to parse :
-------------
function RedirectPage()
{
document.location ="http://www.nicewebsite.com";
}
-------------


2) Here is the program I use to extract the URL to which I need to redirect my
browsing (ugly, I agree)
-------------
q=re.compile("document.location =.*")
t2=q.search(f3)  # f3 contains the full string of the web page
b= t2.group()
q1=re.compile('[^document.location ="].*[^";]')
t4=q1.search(b)
redirectURL=t4.group()
f4=urllib.urlopen(redirectURL).read()
--------------
The program successfully extracts the name of the Url. I can print the exact
text "http://www.nicewebsite.com" (without the quotes).


3) And finally here is the traceback I get :
-----------------------
Traceback (innermost last):
  File "./MyProgram", line 157, in ?
    f4=urllib.urlopen(redirectURL).read()
  File "/usr/lib/python1.5/urllib.py", line 59, in urlopen
    return _urlopener.open(url)
  File "/usr/lib/python1.5/urllib.py", line 157, in open
    return getattr(self, name)(url)
  File "/usr/lib/python1.5/urllib.py", line 272, in open_http
    return self.http_error(url, fp, errcode, errmsg, headers)
  File "/usr/lib/python1.5/urllib.py", line 285, in http_error
    result = method(url, fp, errcode, errmsg, headers)
  File "/usr/lib/python1.5/urllib.py", line 456, in http_error_302
    return self.open(newurl, data)
  File "/usr/lib/python1.5/urllib.py", line 157, in open
    return getattr(self, name)(url)
  File "/usr/lib/python1.5/urllib.py", line 247, in open_http
    if not host: raise IOError, ('http error', 'no host given')
IOError: [Errno http error] no host given
---------------------------


For professional reason, I had to change the web site name above. Could in any
case urllib() be sensitive to the content of the requested URL (full of "&"
chars) ?

Thank you for any help.


---
Patrick Bussi
patrick.bussi at space.alcatel.fr


Any opinions expressed are my own and not necessarily those of my Company.