def openlibrary(num, num_type, force=False, as_holding=True):
# ensure we're dealing with a proper identifier type and value
try:
if num_type.upper() not in ('ISBN', 'OCLC', 'LCCN', 'OLID'):
raise
if num_type.upper() == 'ISBN':
num = clean_isbn(num)
if len(num) not in (10, 13):
raise
except:
return {}
params = '%s:%s' % (num_type, num)
url = 'http://openlibrary.org/api/books?format=json&jscmd=data' + \
'&bibkeys=%s' % params
try:
response = urlopen(url)
json_data = json.loads(response.read())
book = json_data.get(params, {})
for ebook in book.get('ebooks', []):
if ebook.get('availability', '') == 'full':
return make_openlib_holding(book) if as_holding else book
if not force:
return {}
return make_openlib_holding(book) if as_holding else book
except:
return {}
def hathitrust(num, num_type):
# ensure we're dealing with a proper identifier type and value
try:
if num_type.upper() not in ('ISBN', 'OCLC', 'LCCN', 'OLID'):
raise
if num_type.upper() == 'ISBN':
num = clean_isbn(num)
if len(num) not in (10, 13):
raise
except:
return {}
params = '%s/%s' % (num_type, num)
url = 'http://catalog.hathitrust.org/api/volumes/brief/%s.json' % params
try:
response = urlopen(url)
json_data = json.loads(response.read())
for item in json_data.get('items', []):
if item.get('usRightsString', '') == 'Full view':
return make_hathi_holding(item.get('itemURL',''),item.get('fromRecord',''))
except:
return {}
def hathitrust(num, num_type):
# ensure we're dealing with a proper identifier type and value
try:
if num_type.upper() not in ('ISBN', 'OCLC', 'LCCN', 'OLID'):
raise
if num_type.upper() == 'ISBN':
num = clean_isbn(num)
if len(num) not in (10, 13):
raise
except:
return {}
params = '%s/%s' % (num_type, num)
url = 'http://catalog.hathitrust.org/api/volumes/brief/%s.json' % params
try:
response = urlopen(url)
json_data = json.loads(response.read())
for item in json_data.get('items', []):
if item.get('usRightsString', '') == 'Full view':
return make_hathi_holding(item.get('itemURL', ''),
item.get('fromRecord', ''))
except:
return {}
def test_bad_isbns(self):
"""ensure some odd cases come out right."""
for in_isbn, out_isbn in self.examples:
self.assertEqual(clean_isbn(in_isbn), out_isbn)
