Simple http availability checker class =)

checker.py

import requests
from datetime import datetime

HTTP_SUCCESS = 200
AGENT = 'CheckPy/0.0.1'


class HttpChecker():
    """
    Simple http checker:
    Usage:
    sites = ['http://site1.com', 'http://site.ru', 'http://google.com']
    c = HttpChecker(sites, verbose=True)
    c.check()
    """
    def __init__(self, url_list, verbose=False):
        self. sites = url_list
        self.verbose_mode = verbose
        self.header = {'User-Agent': AGENT}

    def check_url(self, url):
        resp = requests.get(url, headers=self.header)
        return resp.status_code

    def format_point(self, point):
        time = '%.2g sec' % point['time'] \
            if point['response'] == HTTP_SUCCESS else None
        info = '[%s]: %s %d by %s' % (
            datetime.now().strftime('%m.%d.%Y %H:%M'),
            point['url'],
            point['response'],
            time
        )
        return info

    def check(self):
        check_dict = {}
        for url in self.sites:
            start = datetime.now()
            response = self.check_url(url)
            end = datetime.now() - start

            result = {
                'url': url,
                'response': response,
                'time': end.total_seconds()
            }

            if self.verbose_mode:
                print self.format_point(result)
            if url not in check_dict:
                check_dict[url] = []

            check_dict[url].append(result)
        return check_dict