improve publishDate extraction from yahoo

from lxml import html

from searx.engines.xpath import extract_text, extract_url

from searx.engines.yahoo import parse_url

from datetime import datetime

from datetime import datetime, timedelta

import re

categories = ['news']

search_url = 'http://news.search.yahoo.com/search?{query}&b={offset}'

        url = parse_url(extract_url(result.xpath(url_xpath), search_url))

        title = extract_text(result.xpath(title_xpath)[0])

        content = extract_text(result.xpath(content_xpath)[0])

# Feb 20 04:02am

        publishedDate = datetime.strptime(extract_text(result.xpath(publishedDate_xpath)[0]),"%b %d %H:%M%p")

        #publishedDate.replace(year=2014)

        publishedDate = extract_text(result.xpath(publishedDate_xpath)[0])

        if re.match("^[0-9]+ minute(s|) ago$", publishedDate):

            publishedDate = datetime.now() - timedelta(minutes=int(re.match(r'\d+', publishedDate).group()))

        else:

            if re.match("^[0-9]+ hour(s|), [0-9]+ minute(s|) ago$", publishedDate):

                timeNumbers = re.findall(r'\d+', publishedDate)

                publishedDate = datetime.now() - timedelta(hours=int(timeNumbers[0])) - timedelta(minutes=int(timeNumbers[1]))

            else:

                # TODO year in string possible?

                publishedDate = datetime.strptime(publishedDate,"%b %d %H:%M%p")

        if publishedDate.year == 1900:

            publishedDate = publishedDate.replace(year=datetime.now().year)

        results.append({'url': url, 'title': title, 'content': content,'publishedDate':publishedDate})

    if not suggestion_xpath: