add lookupbyisbn

ox/web/lookupbyisbn.py

@@ -0,0 +1,40 @@
+from ox.cache import read_url
+from ox import find_re, strip_tags
+import re
+
+base = 'http://www.lookupbyisbn.com'
+
+def get_data(isbn):
+    r = {}
+    url = '%s/Search/Book/%s/1' % (base, isbn)
+
+    data = read_url(url).decode('utf-8')
+    m = re.compile('href="(/Lookup/Book/[^"]+?)"').findall(data)
+    if m:
+        ids = m[0].split('/')
+        r['isbn'] = ids[-2]
+        r['asin'] = ids[-3]
+        url = '%s%s' % (base, m[0])
+        data = read_url(url).decode('utf-8')
+        r["title"] = find_re(data, "<h2>(.*?)</h2>")
+        keys = {
+            'author': 'Author(s)',
+            'publisher': 'Publisher',
+            'date': 'Publication date',
+            'edition': 'Edition',
+            'binding': 'Binding',
+            'volume': 'Volume(s)',
+            'pages': 'Pages',
+        }
+        for key in keys:
+            r[key] = find_re(data, '<span class="title">%s:</span>(.*?)</li>'% re.escape(keys[key]))
+            if r[key] == '--':
+                r[key] = ''
+            if key == 'pages' and r[key]:
+                r[key] = int(r[key])
+        r['description'] = strip_tags(find_re(data, '<h2>Description:<\/h2>(.*?)<div ')).strip()
+        if r['description'] == u'Description of this item is not available at this time.':
+            r['description'] = ''
+        r['cover'] = find_re(data, '<img src="(.*?)" alt="Book cover').replace('._SL160_', '')
+    return r
+