python: multicast echo server

python: multicast echo server

code:

#!/usr/bin/python

##
# Author: Ali Okan Yuksel
# E-mail: okan.yuksel[at]vizyonarge.com
##

import socket
import struct
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind(('', 1111))
mreq = struct.pack("=4sl", socket.inet_aton("226.2.14.8"), socket.INADDR_ANY)
sock.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)

while True:
  line=sock.recv(10240)
  print line
  print "--"

How to: Delete a remote Git tag

git tag -d 12345
git push origin :refs/tags/12345

python traceback module usage

In Python 2.x:

import traceback

try:
    raise TypeError("Oups!")
except Exception, err:
    try:
        raise TypeError("Again !?!")
    except:
        pass

    traceback.print_exc()

Python 3.x :

import traceback

try:
    raise TypeError("Oups!")
except Exception as err:
    try:
        raise TypeError("Again !?!")
    except:
        pass

    traceback.print_tb(err.__traceback__)

how to import csv file to sqlite3 database with custom a separator char on bash shell

how to import csv file to sqlite3 database with custom separator on bash shell:

echo -e '.separator ";"\n.import x datatmp' | sqlite3 /usr/local/app/graphs/data/data.db