ptm 0.0.1a4

#path_to_mordor

Package to organization scraping based on bs4.

Simple example.

<!-- language: lang-py -->
"""
The module contains the rules of scraping.
"""
from ptm import Frodo
from ptm.path_actions import gpagins, gpages, gresults
from ptm.result_actions import KeyRealtionships, gvalues, gtexts, gattrs
from treasy import BookSearchDB
from treasy.session import create_session
from smithy.preparing import prepare

RESORCE = 'http://www.labirint-bookstore.ru'
START_PAGE = 'http://www.labirint-bookstore.ru/books'

def result_proccessing(result_set):
"""
This function proccess the results.
"""
db = BookSearchDB(create_session())
result = prepare(result_set, {'name': 'labirint-bookstore', 'url': 'http://www.labirint-bookstore.ru'})
print(result)
description = result['description'].split('||')
if len(description) > 2:
result['description'] = description[2].strip()
db.update_book(result)

KEY_RELATIONSHIPS = KeyRealtionships({
'ISBN:': 'isbn_numbers',
'Издательство:': 'publisher',
'Автор:': 'authors',
'Переводчик:': 'translators',
'Иллюстратор': 'illustrators',
'Серия:': 'series',
'Жанр:': 'genres',
'Год выпуска:': 'year',
'Тип обложки:': 'cover_format',
'Страниц:': 'page_number',
'Масса:': 'weidth',
'Размеры:': 'size',
'Иллюстратор:': 'illustrators'})

RESULTS = {
KEY_RELATIONSHIPS: gvalues(gtexts('div', attrs={'class': 'book-info-left'}),
gtexts('div', attrs={'class': 'book-info-right'})),
'description': gtexts('div', attrs={'id': 'bigcard-description'}, separator="||"),
'title': gattrs('img', attrs={'class': 'img-cover-book'}, target_attribute='alt')
}

PATH = {
gpagins(pagin_template='?page=', start_page_number=1, finish_page_number=10): {
gpages('div', attrs={'class': 'books-name'}):
gresults(result_proccessing, result_map=RESULTS)
}
}

def run(rucksack):
"""
Run travel. This function triggers scraping.
"""
frodo = Frodo(RESORCE, START_PAGE, PATH, rucksack)
frodo.run()