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Revision as of 17:45, 7 December 2010
Display the titles of an RSS feed
#!/usr/bin/env python
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-u", "--url", dest="url", default="http://feeds.bbci.co.uk/news/rss.xml", help="the url to read from")
parser.add_option("-n", "--numlines", type="int", dest="num", default=1000, help="how many lines to display")
(options, args) = parser.parse_args()
import feedparser
feed = feedparser.parse(options.url)
for e in feed.entries[:options.num]:
print e.title.encode("utf-8")
#!/usr/bin/env python
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-u", "--url", dest="url", default="http://feeds.bbci.co.uk/news/rss.xml", help="the url to read from")
parser.add_option("-n", "--numlines", type="int", dest="num", default=1000, help="how many lines to display")
(options, args) = parser.parse_args()
import feedparser
feed = feedparser.parse(options.url)
for e in feed.entries[:options.num]:
print e.title.encode("utf-8")
Words
Turns a text in an alphabetical list of unique words. Attempts to strip punctuation and lowercases everything.
#!/usr/bin/env python
import sys, string
words = {}
for line in sys.stdin:
for word in line.split():
word = word.lower().strip(string.punctuation)
words[word] = words.get(word, 0) + 1
for word in sorted(words.keys()):
print word,
print
Word counts
Grab words (as above) and display one per line followed by the number of times the word appears.
#!/usr/bin/env python
import sys, string
words = {}
for line in sys.stdin:
for word in line.split():
word = word.lower().strip(string.punctuation)
words[word] = words.get(word, 0) + 1
for (word, count) in sorted(words.items()):
print word, count
Permutations
bla bla
#!/usr/bin/python
import sys, codecs, string, random
sys.stdin = codecs.getreader("utf-8")(sys.stdin)
count = {}
for line in sys.stdin:
for w in line.split():
w = w.strip(string.punctuation).lower()
if w:
count[w] = count.get(w,0)+1
#for w,c in sorted(count.items()):
# print w,c
words = count.keys()
#words.sort()
random.shuffle(words)
words = words[0:5]
import itertools
for ws in itertools.permutations(words):
for w in ws:
print w,
print
Headline Permutation CGI!
#!/usr/bin/env python
#-*- coding:utf-8 -*-
print "Content-type: text/html"
print
import cgi
args = cgi.FieldStorage()
n = int(args.getvalue("n", "0"))
print """
<body>
"""
import feedparser
feed = feedparser.parse("http://feeds.bbci.co.uk/news/rss.xml")
import itertools
words = feed.entries[n].title.split()
orderings = list(itertools.permutations(words))
for ws in orderings:
print " ".join(ws)
print "<br />"
#for e in feed.entries[:options.num]:
# print "<p>"
# print e.title.encode("utf-8")
# print "</p>"
print """
</body>
"""