rssReader with desktop notification.

[espen77]

Hi all. I am new to python, just passed the hello world stage. I have written a couple of bash scripts earlyer but that is about it, so I got my self my very first e-book and started reading (Hello World! Conputer programming for kids).

So I wanted to make something that showed OSD notification when there was something new at slashdot, but i tried to make it so it can work with other feeds to. There are probably many programs like this out there, but i am still proud i got this to work.


#! /usr/bin/env python
# My first program beyond the hello world's. It reads RSS feeds and display them
# as desktop notification in ubuntu. I got the inspiration and some code from:
# http://www.learningpython.com/2006/01/14/rss-reader-part-one/
# and pynotify doc's.
try:
import urllib2, gtk, pygtk, os, os.path, pynotify, time
from xml.dom import minidom, Node
pygtk.require('2.0')
except:
print "Error: need python-notify, python-gtk2 and gtk"

rssLists = {}
rssTimer = 0

def osdNotify(osdTitle,osdString):
if not pynotify.init("Timekpr notification"):
sys.exit(1)
n = pynotify.Notification(osdTitle, osdString)
n.set_urgency(pynotify.URGENCY_LOW)
n.set_timeout(10000)
if not n.show():
print "Error: Failed to send notification"
sys.exit(1)

def grabRSS(rssTitle, rssAddress):
global rssLists, rssTimer
if not rssLists.has_key(rssTitle):
rssLists[rssTitle] = []
url_info = urllib2.urlopen(rssAddress)
if (url_info):
rssTimer = 60 # set shorter refresh if RSS is reachable
xmldoc = minidom.parse(url_info)
if (xmldoc):
rootNode = xmldoc.documentElement
for node in rootNode.childNodes:
if (node.nodeName == "item"):
for item_node in node.childNodes:
if (item_node.nodeName == "title"):
title = ""
for text_node in item_node.childNodes:
if (text_node.nodeType == node.TEXT_NODE):
title += text_node.nodeValue
if (len(title)>0):
if title not in rssLists[rssTitle]:
if len(rssLists[rssTitle]) < 15:
rssLists[rssTitle].append(title)
else:
rssLists[rssTitle].insert(0, title)
rssLists[rssTitle] = rssLists[rssTitle][:15]
osdNotify(rssTitle, title)
print rssTitle + ": " + title # prints feed to terminal
else:
osdNotify("Script Error!", "Error getting XML document!")
else:
rssTimer = 600 # set longer refreshtime if RSS not reachable
osdNotify("Script Error!", "Error! Getting URL")

while True:
grabRSS("slashdot.org", "http://rss.slashdot.org/Slashdot/slashdot")
time.sleep(rssTimer)

[car1]

The indentation hurts the brain.

http://www.python.org/dev/peps/pep-0008/