Amazon metadata download: Try to scrape series information from the amazon details page. Note that currently very few books have series info available. Often the page for hardcover will have series, but the Kindle edition will not. In such cases calibre may or may not find the series, depending on which page it uses.

This commit is contained in:
Kovid Goyal 2012-02-18 14:04:41 +05:30
parent 60c97aec90
commit 45e7e3f507

View File

@ -156,6 +156,16 @@ class Worker(Thread): # Get details {{{
for name in names:
self.lang_map[name] = code
self.series_pat = re.compile(
r'''
\|\s* # Prefix
(Series)\s*:\s* # Series declaration
(?P<series>.+?)\s+ # The series name
\((Book)\s* # Book declaration
(?P<index>[0-9.]+) # Series index
\s*\)
''', re.X)
def delocalize_datestr(self, raw):
if not self.months:
return raw
@ -265,6 +275,15 @@ class Worker(Thread): # Get details {{{
except:
self.log.exception('Error parsing comments for url: %r'%self.url)
try:
series, series_index = self.parse_series(root)
if series:
mi.series, mi.series_index = series, series_index
elif self.testing:
mi.series, mi.series_index = 'Dummy series for testing', 1
except:
self.log.exception('Error parsing series for url: %r'%self.url)
try:
self.cover_url = self.parse_cover(root)
except:
@ -398,6 +417,20 @@ class Worker(Thread): # Get details {{{
ans += self._render_comments(desc[0])
return ans
def parse_series(self, root):
ans = (None, None)
desc = root.xpath('//div[@id="ps-content"]/div[@class="buying"]')
if desc:
raw = self.tostring(desc[0], method='text', encoding=unicode)
raw = re.sub(r'\s+', ' ', raw)
match = self.series_pat.search(raw)
if match is not None:
s, i = match.group('series'), float(match.group('index'))
if s:
ans = (s, i)
return ans
def parse_cover(self, root):
imgs = root.xpath('//img[@id="prodImage" and @src]')
if imgs:
@ -457,7 +490,7 @@ class Amazon(Source):
capabilities = frozenset(['identify', 'cover'])
touched_fields = frozenset(['title', 'authors', 'identifier:amazon',
'identifier:isbn', 'rating', 'comments', 'publisher', 'pubdate',
'languages'])
'languages', 'series'])
has_html_comments = True
supports_gzip_transfer_encoding = True
@ -685,13 +718,15 @@ class Amazon(Source):
from lxml.html import tostring
import html5lib
testing = getattr(self, 'running_a_test', False)
query, domain = self.create_query(log, title=title, authors=authors,
identifiers=identifiers)
if query is None:
log.error('Insufficient metadata to construct query')
return
br = self.browser
if getattr(self, 'running_a_test', False):
if testing:
print ('Using user agent for amazon: %s'%self.user_agent)
try:
raw = br.open_novisit(query, timeout=timeout).read().strip()
@ -714,7 +749,7 @@ class Amazon(Source):
raw = clean_ascii_chars(xml_to_unicode(raw,
strip_encoding_pats=True, resolve_entities=True)[0])
if getattr(self, 'running_a_test', False):
if testing:
import tempfile
with tempfile.NamedTemporaryFile(prefix='amazon_results_',
suffix='.html', delete=False) as f:
@ -757,8 +792,7 @@ class Amazon(Source):
return
workers = [Worker(url, result_queue, br, log, i, domain, self,
testing=getattr(self, 'running_a_test', False)) for i, url in
enumerate(matches)]
testing=testing) for i, url in enumerate(matches)]
for w in workers:
w.start()
@ -820,9 +854,18 @@ if __name__ == '__main__': # tests {{{
# To run these test use: calibre-debug -e
# src/calibre/ebooks/metadata/sources/amazon.py
from calibre.ebooks.metadata.sources.test import (test_identify_plugin,
isbn_test, title_test, authors_test, comments_test)
isbn_test, title_test, authors_test, comments_test, series_test)
com_tests = [ # {{{
( # Series
{'identifiers':{'amazon':'0756407117'}},
[title_test(
"Throne of the Crescent Moon"
, exact=True), series_test('Crescent Moon Kingdoms', 1),
comments_test('Makhslood'),
]
),
( # Different comments markup, using Book Description section
{'identifiers':{'amazon':'0982514506'}},
[title_test(