Fetch images of faces from google by persons name

FaceFetch.py

'''
Fetch faces from the interwebs by name

Uses Google Image Search to get a bunch faces 
based on the specified name
'''
from os import path, errno, makedirs

import urllib.request
import re 

class FaceFetch():
    '''It sure fetches faces! (tm)'''
    def __init__(self, user_agent=None, pattern=None):
        self.url = 'https://www.google.co.uk/search'
        self.pattern = '"ou":"(?P<url>http(s?)://[^\s\"]+)' if pattern is None else pattern
        self.user_agent = 'Mozilla/5.0 Gecko/20100101 Firefox/12.0' if user_agent is None else user_agent
        self.regex = re.compile(self.pattern, re.IGNORECASE)
        self.headers = { 'User-Agent': self.user_agent }

    @staticmethod
    def __make_path(filename):
        if not path.exists(path.dirname(filename)):
            try:
                makedirs(path.dirname(filename))
            except OSError as exc:
                if exc.errno != errno.EEXIST:
                    raise
        return filename

    @staticmethod
    def __save_file(file, file_path):
        with open(file_path, 'wb') as handler:
            print("Saving {}".format(file_path))
            handler.write(file.read())

    def __make_query(self, name):
        '''Builds the query URI'''
        return self.url + '?tbm=isch&tbs=itp:face,isz:l,ift:jpg&q={}'.format(name.replace(' ', '+'))

    def __valid_files(self, output, result):
        '''Iterates over the parsed results.
		   Attempts to download matching image'''
        for idx, match in enumerate(self.regex.finditer(result)):
            try:
                file = urllib.request.urlopen(match.group(1))
                if not file.headers['Content-Type'] == 'image/jpeg':
                    continue
            except urllib.error.HTTPError as e:
                continue
            yield (file, path.join(output, '{}.jpg'.format(idx+1)))

    def __open(self, name):
        request = urllib.request.Request(self.__make_query(name), data=None, headers=self.headers)
        return urllib.request.urlopen(request).read().decode('utf-8')

    def request(self, name, output=None, limit=4):
        output = self.__make_path(name if output is None else output)
        result = self.__open(name)
        for file, file_path in self.__valid_files(output, result):
            self.__make_path(file_path)
            self.__save_file(file, file_path)
            limit -= 1
            if limit == 0:
                return