optionally send api key

oml/meta/google.py

@@ -8,6 +8,7 @@ import ox.web.google
 import stdnum.isbn
 
 from .utils import find_isbns, get_language, decode_html_data, to_isbn13
+import settings
 
 import logging
 logger = logging.getLogger(__name__)
@@ -40,6 +41,9 @@ def info(key, value):
     if key not in ('isbn', 'lccn', 'oclc'):
         raise IOError('unknwon key %s' % key)
     url = 'https://www.googleapis.com/books/v1/volumes?q=%s:%s' % (key, value)
+    api_key = settings.server.get('google_api_key')
+    if api_key:
+        url += '&key=' + api_key
     if api_limit.error:
         raise IOError(url)
     while not api_limit.consume(1):