dketov

# -*- encoding: utf-8 -*-
"""
Разбор XML формата
"""
from xml.dom.minidom import parse, parseString

dom1 = parse( "example.xml" )   # parse an XML file
dom2 = parseString( "<myxml>Some data <empty/> some more data</myxml>" )
print dom1.toxml()
print dom2.toxml()

dketov

# -*- encoding: utf-8 -*-
"""
Вычисление хэша
"""

import hashlib

m = hashlib.md5()
m.update("Nobody inspects")
m.update(" the spammish repetition")

dketov

# -*- encoding: utf-8 -*-
"""
Постоянное хранилище языковых объектов
"""
import shelve

d = shelve.open(filename) # open -- file may get suffix added by low-level library

d[key] = data   # store data at key (overwrites old data if using an existing key)
data = d[key]   # retrieve a COPY of data at key (raise KeyError if no such key)

dketov

# -*- encoding: utf-8 -*-
"""
Сравнение текстов
"""
from difflib import get_close_matches
get_close_matches('appel', ['ape', 'apple', 'peach', 'puppy'])

import keyword
get_close_matches('wheel', keyword.kwlist)

dketov

# -*- encoding: utf-8 -*-
"""
Пути к файлам и каталогам
"""
import os.path

for path in [ '/one/two/three', '/one/two/three/', '/', '.', '']:
    print '"%s" : "%s"' % (path, os.path.split(path))

print '"%s" : "%s"' % (path, os.path.basename(path))

dketov

# -*- encoding: utf-8 -*-
"""
Аргументы командной строки
"""
import sys, os

print 'sys.argv[0] =', sys.argv[0]
pathname = os.path.dirname(sys.argv[0])
print 'path =', pathname
print 'full path =', os.path.abspath(pathname)

dketov

# -*- encoding: utf-8 -*-
"""
Поверхностное и глубокое копирование
"""
import copy

listOne = [{"name": "Willie", "city": "Providence, RI"}, 1, "tomato", 3.0]

listTwo = listOne[:]                   
listTwo=copy.copy(listOne)

dketov

# -*- encoding: utf-8 -*-
"""
Использование атрибутов, методов и классов модуля
"""

import library
library.sys
print library.name
print library.func, library.klass
print library.__dict__.keys()

dketov

# -*- encoding: utf-8 -*-
"""
Импортирование модуля
"""

import printer                    # get module as a whole
printer.printer('Hello world!')   # qualify to get names

dketov

# -*- encoding: utf-8 -*-
"""
Перегрузка операторов
"""

class defaultdict(dict):
    def __init__(self, default=None):
        dict.__init__(self)
        self.default = default