[Tutor] Re: Reading text lines from a socket
pythontutor at venix.com
Sun Feb 29 02:28:59 CET 2004
Well, I've never used it, but sockets do have the makefile method. That
would seem to fit what you're trying to do.
Sandip Bhattacharya wrote:
> [Reposting to the general list too]
> Lloyd Kvam wrote:
>> Sockets deal with packetized data. The network protocols do not
>> keeping the data in line oriented chunks - even if the data starts out
>> that way.
>> You need to deal with extracting lines from chunks. So long as the
>> connection is
>> working properly, this is easy. The challenge occurs when the
>> remainder of a line
>> never gets delivered. The best strategy depends upon the details of
>> what you are
> I understand that. In Python using sockets is like using sockets in C.
> However, I was looking for a python equivalent of the perl idiom of
> opening a socket and getting a file handle ... and then reading this
> file handle as any other line oriented file using $socket->readline
> I am trying to write a simple Netcraft style script which tries the HEAD
> method on a webserver and reads the Server: header from the response. I
> would not like to use urllib, because even a call to something like
> urllib.info() reads in the complete webpage on an open().
> Even if this particular problem could be done elegantly, I would be
> interested to know the answer to my original question because the
> feature of reading a line at a time from a socket will help me in a lot
> of other places in the future.
> - Sandip
1 Court Street, Suite 378
Lebanon, NH 03766-1358
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