Fix doc build by swapping install order (googleapis#3828)

Author: Jon Wayne Parrott

nox.py

@@ -30,13 +30,13 @@ def docs(session):
     # Install Sphinx and also all of the google-cloud-* packages.
     session.chdir(os.path.realpath(os.path.dirname(__file__)))
     session.install('Sphinx >= 1.6.2', 'sphinx_rtd_theme')
+    session.install('.')
     session.install(
-        'core/', 'bigquery/', 'bigtable/', 'datastore/', 'dns/', 'language/',
-        'logging/', 'error_reporting/', 'monitoring/', 'pubsub/',
+        'core/', 'storage/', 'bigquery/', 'bigtable/', 'datastore/', 'dns/',
+        'language/', 'logging/', 'error_reporting/', 'monitoring/', 'pubsub/',
         'resource_manager/', 'runtimeconfig/', 'spanner/', 'speech/',
-        'storage/', 'trace/', 'translate/', 'vision/',
+        'trace/', 'translate/', 'vision/',
     )
-    session.install('.')
 
     # Build the docs!
     session.run('bash', './test_utils/scripts/update_docs.sh')

storage/google/cloud/storage/bucket.py

@@ -43,7 +43,7 @@ def _blobs_page_start(iterator, page, response):
     :type iterator: :class:`~google.api.core.page_iterator.Iterator`
     :param iterator: The iterator that is currently in use.
 
-    :type page: :class:`~google.cloud.iterator.Page`
+    :type page: :class:`~google.cloud.api.core.page_iterator.Page`
     :param page: The page that was just created.
 
     :type response: dict