Issue pandas-dev#13577 - flake8 fixes

Author: mhaseebtariq

pandas/io/gbq.py

@@ -179,10 +179,10 @@ def get_application_default_credentials(self):
             return None
         # Check if the application has rights to the BigQuery project
         bigquery_service = build('bigquery', 'v2', credentials=credentials)
-        job_collection = bigquery_service.jobs()
+        jobs = bigquery_service.jobs()
         job_data = {'configuration': {'query': {'query': 'SELECT 1'}}}
         try:
-            job_collection.insert(projectId=self.project_id, body=job_data).execute()
+            jobs.insert(projectId=self.project_id, body=job_data).execute()
         except (AccessTokenRefreshError, HttpError):
             return None
         return credentials

pandas/io/tests/test_gbq.py

@@ -83,7 +83,7 @@ def _test_imports():
             from oauth2client.client import GoogleCredentials  # noqa
             from oauth2client.client import OAuth2WebServerFlow  # noqa
             from oauth2client.client import AccessTokenRefreshError  # noqa
-            from oauth2client.client import ApplicationDefaultCredentialsError # noqa
+            from oauth2client.client import ApplicationDefaultCredentialsError  # noqa
 
             from oauth2client.file import Storage  # noqa
             from oauth2client.tools import run_flow  # noqa
@@ -219,10 +219,11 @@ def test_should_be_able_to_get_results_from_query(self):
         schema, pages = self.sut.run_query('SELECT 1')
         self.assertTrue(pages is not None)
 
-    def test_should_be_able_to_get_a_bigquery_service_from_default_credentials(self):
+    def test_should_be_able_to_get_credentials_from_default_credentials(self):
         from oauth2client.client import GoogleCredentials
         credentials = self.sut.get_application_default_credentials()
-        self.assertTrue(isinstance(credentials, (type(None), GoogleCredentials)))
+        valid_types = (type(None), GoogleCredentials)
+        self.assertTrue(isinstance(credentials, valid_types))
 
 
 class TestGBQConnectorServiceAccountKeyPathIntegration(tm.TestCase):