belyaev-pa

from redis import Redis
import string
import random
from time import sleep


def random_message_generate(length=100):
    message = ''.join([random.choice(
        string.ascii_letters + string.digits) for n in range(length)])
    return message

belyaev-pa

def timer(func):
    def tmp(*args, **kwargs):
        t = time.time()
        res = func(*args, **kwargs)
        print("f time - {} {}".format(str(time.time()-t), f.__name__, ))
        return res
    return tmp

belyaev-pa

def kangaroo(input_str):
    """ для решения задачи необходимо решить уравнение:
    x1 + y * v1 = x2 + y * v2, так же проверим условия,
    и проверим крайние уникальные условия, при которых 
    возникает деление на 0:  v2 == v1"""
    input_list = input_str.split()
    x1, v1, x2, v2 = map(int, input_list)
    if x1 < 0 or x1 > x2 or x2 > 10000 or\
        v1 < 1 or v1 > 10000 or\
        v2 < 1 or v2 > 10000:

belyaev-pa

import itertools


def get_data(file_name):
    """generator to yield file row by row
    for not upload it to memory"""
    with open(file_name, encoding='Windows-1251') as f:
        rows = f.readlines()
        for row in rows:
            yield (row)

belyaev-pa

Latency Comparison Numbers
--------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

belyaev-pa

# !/usr/bin/python
# -*- coding: utf-8 -*-
from email.parser import Parser
import syslog
import email
import base64
import ldap
import sys
import argparse
import os

belyaev-pa

def decorator(arg1, arg2):
    def real_decorator(function):
        def wrapper(*args, **kwargs):
            print("Congratulations.  You decorated a "
                  "function that does something with %s and %s" % (arg1, arg2))
            for obj in args: # это список
                print('hello: {}'.format(obj))
            for key, value in kwargs.items(): # это словарь
                print('key={}, value={}'.format(key, value))
            function(*args, **kwargs)

belyaev-pa

static private int NumberSum(int number)
    {
        int sum = 0;
        while(number != 0)
        {
            sum += number % 10;
            number /= 10;            
        }
        return sum;
}

belyaev-pa

# -*- coding: utf-8 -*-
from collections import defaultdict, OrderedDict


PINGDROP = OrderedDict([
    ('- первичный пинг локальных сокетов', ['ping', '-i', '0.2', '-w', '1',  '127.0.0.1']),
    (
        'установка правила для блокировки icmp пакетов идущих на локальные сокеты',
        ['iptables', '-I', 'INPUT', '-s', '127.0.0.1', '-p', 'icmp', '-j', 'DROP']
    ),

belyaev-pa

import socket
import sys
import os
import json
import time


server_address = './uds_socket.s'

# Make sure the socket does not already exist