HTTPResponse.read() returns an empty string?

[Christoph Söllner]

Hi again,

my Source:
"""
import httplib
conn = httplib.HTTPCon nection('www.py thon.org');
conn.request("G ET", "/index.html");
answ = conn.getrespons e();
print answ.status, answ.reason[color=blue][color=green][color=darkred]
>>> 200 OK[/color][/color][/color]
conn.close();
print "Start";[color=blue][color=green][color=darkred]
>>> Start[/color][/color][/color]
print answ.read();[color=blue][color=green][color=darkred]
>>>[/color][/color][/color]
print len(answ.read() );[color=blue][color=green][color=darkred]
>>> 0[/color][/color][/color]
print "End";[color=blue][color=green][color=darkred]
>>> End[/color][/color][/color]

And the header states a content length of 11kBytes. What am I doin wrong?

Thanks again,
Chris

[Christoph Söllner]

Re: HTTPResponse.re ad() returns an empty string?

ok got it:
One cannot close the connection before reading the answer.
Seems that in my original source the new assigned variable
'answ' is destroyed or emptied with the connection.clos e()
command; very strange behaviour.[color=blue]
> """
> import httplib
> conn = httplib.HTTPCon nection('www.py thon.org');
> conn.request("G ET", "/index.html");
> answ = conn.getrespons e();
> print answ.status, answ.reason[color=green][color=darkred]
>>>> 200 OK[/color][/color]
> conn.close();
> print "Start";[color=green][color=darkred]
>>>> Start[/color][/color]
> print answ.read();[color=green][color=darkred]
>>>>[/color][/color]
> print len(answ.read() );[color=green][color=darkred]
>>>> 0[/color][/color][/color]

[Marc 'BlackJack' Rintsch]

Re: HTTPResponse.re ad() returns an empty string?

In <dj2m7k$s7n$1@w sc10.lrz-muenchen.de>, Christoph Söllner wrote:
[color=blue]
> ok got it:
> One cannot close the connection before reading the answer.[/color]

Yep, because the "answer" is read over the connection.
[color=blue]
> Seems that in my original source the new assigned variable
> 'answ' is destroyed or emptied with the connection.clos e()
> command; very strange behaviour.[/color]

No, it's not emptied or destroyed. The read() method reads the content
over the connection. That doesn't work if the connection is closed. It's
like closing a file and then reading from it.

The response object contains just the headers. So you can inspect them
before you decide to download the actual content.

Ciao,
Marc 'BlackJack' Rintsch