infoarena

def logger(storage, tag="ERROR"):
    def log(msg):
        storage.append("%8s: %s" % (tag, msg))
    return log
...
loglines = []
elog = logger(loglines)
wlog = logger(loglines, "WARNING")
...
elog("Am ramas fara spatiu.")
wlog("Treaba merge greu.")
...
print loglines

['   ERROR: Am ramas fara spatiu.', ' WARNING: Treaba merge greu.']

[[0 for _ in range(n)] for _ in range(m)]

[[0] * M] * N

class ColorWrite:
        FWHT="\033[37m " # foreground white
        def __init__(self):
                print "Using ColorWrite\n"+self.FWHT,

import os
import ColorWrite as cw

class IFolderScanner:
        w = cw.ColorWrite()
        def scan(self, path):
                pass

class fs1( IFolderScanner ):
        def __init__(self):
                w.write("Using basic file scanner (1)", "info")
        def scan(self, path):
                r = os.listdir(path)
                print r

Python 2.5.2 (r252:60911, Apr 21 2008, 11:12:42)
[GCC 4.2.3 (Ubuntu 4.2.3-2ubuntu7)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import ColorWrite
>>> import FolderScanner
Using ColorWrite

class IFolderScanner:
        w = cw.ColorWrite()

[[0] * m for i in range(n)]

map <F10> <ESC>:w<CR>:!chmod +x %<CR>:!time python %<CR>

def solve(lim=1000000):
    visited = []
    for x in range(lim):
        visited.append(0)

def solve(lim=1000000):
    visited = [0]*lim

# this script takes a list of infoarena.ro usernames and outputs one txt file
# for each user containing the problems solved by that user

# importing html processing libraries
import urllib
from BeautifulSoup import BeautifulSoup
import re

# this function strips html and newlines
def remove_html_tags(data):
    p = re.compile(r'<.*?>')
    return p.sub('', data).strip()

# open file, we have one username on each line
file = open('userList.txt', 'r')

# iterate users
for user in file:

    # if we reached the end of the file
    if user == '\n':
        break

    # remove newline from the end of the line
    user = user.strip()

    # create a txt file for the current user
    userFile = open('problemsSolvedBy' + user + '.txt', 'w')

    # solved problems for the current user are found at
    # http://infoarena.ro/utilizator/*username*?action=stats
    # in the first span that has the 'task_enum' css class
    htmlFile = urllib.urlopen('http://infoarena.ro/utilizator/' + user + '?action=stats')

    # parse html elements
    soup = BeautifulSoup(htmlFile.read())

    # get the first span element that has task_enum class(the paragraph with the solved problems)
    problemsListSoup = soup.find('span', { 'class' : 'task_enum'})
    
    # split those problem tags
    problems = problemsListSoup.findAll('a')

    for problem in problems:
        userFile.write(remove_html_tags(problem.prettify()) + '\n')
    
    userFile.close()

    print user + ' done.'

file.close()