Python-сообщество

CLIENTHOST = '192.168.1.1'
CLIENTPORT = 33333
SERVERHOST = '192.1681.2'
SERVERPORT = 33335
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.bind((CLIENTHOST, CLIENTPORT))

sock.sendto(str(chr(100)),(SERVERHOST,SERVERPORT))

def safe_open(*args):
	try:
		return open(*args)
	except IOError:
		sys.exit('Error when opening file \'{0}\'. Error #{1[0]}: {1[1]}'.format(\
		args[0], sys.exc_info()[1].args))
...

with safe_open(myfile, 'r') as f:
	for i in f:
		print i

with safe_open(anotherfile, 'r') as f:
	try:
		conf = ''.join(f).format(**args)
	except KeyError:
		quit('\nOops, your template \'{0}\' has placeholders for parameters\nthat were not supplied in the command line: - {1}\n\nCan\'t proceed. Ending. Nothing has been changed yet.'.format(args['host_template'], '\n - '.join(sys.exc_info()[1].args)), 1)

articles=sa.Table('articles',meta.metadata,
	sa.Column('id',sa.types.Integer,primary_key=True,autoincrement=True,nullable=False),
	sa.Column('name',sa.types.String(255),default=u'',nullable=False),
)
news=sa.Table('news',meta.metadata,
	sa.Column('id',sa.types.Integer, primary_key=True, autoincrement=True,nullable=False),
	sa.Column('name',sa.types.String(255),default=u'',nullable=False),
)
news_tag=sa.Table('news_tag',meta.metadata,
	sa.Column('new_id',sa.types.Integer,sa.ForeignKey('news.id'),nullable=False,default=0),
	sa.Column('article_id',sa.types.Integer,sa.ForeignKey('articles.id'),nullable=False,default=0),
)
class Articles(object):
	def __repr__(self):
		return self.name
class News(object):
	def __repr__(self):
		return self.name
orm.mapper(Articles,articles)
orm.mapper(
	News,news,
	properties={'articles':orm.relation(Articles,secondary=news_tag,backref=orm.backref('news'))}
)

import re
mas={}
for string  in open(raw_input('Введите имя файла: '),'r'):
    words=re.split('\W+|[0-9]|_|',string)
    for word in words:
        word = word.lower()
        if mas.has_key(word):
            mas[word]+=1
        else:
            mas[word]=1
f=open('c:\output.txt','w')
for key in sorted(mas.iterkeys()):
    string=key+' '+str(mas[key])+"\n"
    f.write(string)
print "Done"

class m1(models.Model):
    m2s = models.ManyToManyField(m2)
    
    
    def get_m2s(self):
        from django.db import connection
        cursor = connection.cursor()
        cursor.execute("SELECT m2_id FROM main_m1_m2s where m1_id = %s", [self.id])
        rows = cursor.fetchall()
        ids = []
        for row in rows:
            ids.append(str(row[0]))
     
        return m2.objects.filter(id__in = ids)

import numpy.linalg as linalg    

def find_closest_line(lines, point):
    ls = []
    for x in zip(lines, lines[1:]):
        n = (x[0][1]-x[1][1])*point[0]+(x[1][0]-x[0][0])*point[1]+ x[0][0]*x[1][1] - x[1][0]*x[0][1]
        ls.append(abs(n / linalg.norm(x)))
    return N.argmin(ls)

class BlobField(models.Field):
    __metaclass__ = models.SubfieldBase

    def db_type(self):
        return 'BLOB'

    def to_python(self, value):
        return value

    def get_db_prep_save(self, value):
        return value