Print Socket.error Python
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Attributeerror: Type Object '_socketobject' Has No Attribute 'error'
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Python Socket Error Connection Refused
it only takes a minute: Sign up Python handling specific error codes? up vote 17 down vote favorite 3 Hey I'm wondering how to handle specific error codes. For example, [Errno 111] Connection refused I want to catch this specific error in the socket module and print something. python sockets exception exception-handling share|improve this question asked Mar 1 '11 at socket error handling 22:25 AustinM 26041224 add a comment| 3 Answers 3 active oldest votes up vote 22 down vote accepted If you want to get the error code, this seems to do the trick; import errno try: socketConnection() except socket.error, v: errorcode=v[0] if errorcode==errno.ECONNREFUSED: print "Connection Refused" You can look up errno error codes. share|improve this answer edited Aug 10 at 15:43 Flimm 24k107081 answered Mar 1 '11 at 22:40 utku.zih 2,80921741 5 On OSX, ECONNREFUSED appears to be 61 not 111, so hard-coding the value 111 would be a bad idea for portability. –jchl Mar 1 '11 at 22:46 You are absolutely right. I am sure that there are more cases like that. –utku.zih Mar 1 '11 at 22:48 It's important to have an else: raise, otherwise all other error codes will be silently ignored! –jtpereyda Sep 3 at 22:56 add a comment| up vote 23 down vote On Unix platforms, at least, you can do the following. import socket, errno try: # Do something... except socket.error as e: if e.errno == errno.ECONNREFUS
This module provides access to the BSD socket interface. It is available on all modern Unix systems, Windows, Mac OS X, BeOS, OS/2, and
Except Socket Error Msg Invalid Syntax
probably additional platforms. Note Some behavior may be platform dependent,
Python Catch All Socket Exceptions
since calls are made to the operating system socket APIs. For an introduction to socket programming python socket example (in C), see the following papers: An Introductory 4.3BSD Interprocess Communication Tutorial, by Stuart Sechrest and An Advanced 4.3BSD Interprocess Communication Tutorial, by Samuel J. Leffler et http://stackoverflow.com/questions/5161167/python-handling-specific-error-codes al, both in the UNIX Programmer's Manual, Supplementary Documents 1 (sections PS1:7 and PS1:8). The platform-specific reference material for the various socket-related system calls are also a valuable source of information on the details of socket semantics. For Unix, refer to the manual pages; for Windows, see the WinSock (or Winsock 2) specification. For https://docs.python.org/2/library/socket.html IPv6-ready APIs, readers may want to refer to RFC 3493 titled Basic Socket Interface Extensions for IPv6. The Python interface is a straightforward transliteration of the Unix system call and library interface for sockets to Python's object-oriented style: the socket() function returns a socket object whose methods implement the various socket system calls. Parameter types are somewhat higher-level than in the C interface: as with read() and write() operations on Python files, buffer allocation on receive operations is automatic, and buffer length is implicit on send operations. Socket addresses are represented as follows: A single string is used for the AF_UNIX address family. A pair (host, port) is used for the AF_INET address family, where host is a string representing either a hostname in Internet domain notation like 'daring.cwi.nl' or an IPv4 address like '100.50.200.5', and port is an integer. For AF_INET6 address family, a four-tuple (host, find an excuse to code some Python for the first time. I am impressed. Python doesn't feel like other programming languages. When I write Python I feel like I'm just telling the computer what to do, rather than constantly worrying http://thesmithfam.org/blog/2005/11/19/python-sockets-clean-concise/ about essoteric language issues. What I mean is this. While coding Java, I am constantly thinking about class design, exception handling, patterns, etc. While coding C++, I worry a lot about memory management and I spend a lot of time trying to remember funky STL APIs. However, while coding Python the other day, I almost forgot I was programming. It was like I was just telling the computer what to do, line after line. My day's work culminated socket error with a pleasant experience coding to the Python socket API. Read on for the details. Coding Python client sockets is simple and intuitive. You just create a socket, set it up, connect it, and let Python's superb exception handling take care of any problems. Like this: try: host = "example.com" port = 80 # Create a socket object: s = socket.socket( socket.AF_INET, socket.SOCK_STREAM ) # If any operation takes more than 2 seconds, drop to the "except" below s.settimeout( print socket.error python 2 ) # Connect to the host s.connect( ( host, port ) ) # Send "Some string\n" to the host s.send( "Some string\n" ) # See if the host has anything to say in reply response_string, server = s.recvfrom(4096) # Print the response print response_string except socket.error, msg: # If anything bad happened above, this runs: print "An error occurred:", msg else: # If all went well (no exceptions), we get here: print "Succcess!" All told, I got a good ROI on learning Python. I had a working application, complete with error handling, in under a day with minimal code. There is a plethora of Python info on the web, and though I find its documentation site to be lacking compared to PHP's docs, it's pretty good. Write a Reply or Comment Cancel reply Your email address will not be published. Message* Archives September 2015 March 2015 September 2013 December 2012 October 2012 April 2012 March 2012 January 2012 December 2011 September 2011 April 2011 February 2011 October 2010 July 2010 June 2010 May 2010 April 2010 March 2010 February 2010 January 2010 October 2009 September 2009 August 2009 July 2009 June 2009 May 2009 April 2009 February 2009 January 2009 December 2008 November 2008 October 2008 September 2008 July 2008 June 2008 May 2008 April 2008 March 2008 February 2008 January 2008 December 2007 November 2007 October 2007 September 2007 August 2007 July