kaxil opened a new pull request #5955: [AIRFLOW-5350] Fix bug in the num_retires field in BigQueryHook URL: https://github.com/apache/airflow/pull/5955 Make sure you have checked _all_ steps below. ### Jira - [x] My PR addresses the following [Airflow Jira](https://issues.apache.org/jira/browse/AIRFLOW/) issues and references them in the PR title. For example, "\[AIRFLOW-XXX\] My Airflow PR" - https://issues.apache.org/jira/browse/AIRFLOW-5350 ### Description - [x] Here are some details about my PR, including screenshots of any UI changes: The `num_retries` extra is no set in old connections that were created before 1.10.4, for those fields it's value is None which causes the below error: From the StackOverflow Post: ``` [2019-08-27 02:49:58,076] {cli.py:516} INFO - Running <TaskInstance: cadastro_remessas_paises2.gcs_to_bq 2019-08-27T02:42:43.970619+00:00 [running]> on host cadastroremessaspaises2gcstobq-78f1ea099c3b4e718ba707cb03ffda1e [2019-08-27 02:49:58,136] {logging_mixin.py:95} INFO - [[34m2019-08-27 02:49:58,136[0m] {[34mdiscovery.py:[0m271} INFO[0m - URL being requested: GET [1mhttps://www.googleapis.com/discovery/v1/apis/bigquery/v2/rest[0m[0m [2019-08-27 02:49:59,259] {logging_mixin.py:95} INFO - [[34m2019-08-27 02:49:59,259[0m] {[34mmy_functions_google.py:[0m2224} INFO[0m - Project not included in [1mdestination_project_dataset_table[0m: [1mcadastro_remessas.paises2[0m; using project "[1mbigdata-staging[0m"[0m [2019-08-27 02:49:59,266] {logging_mixin.py:95} INFO - [[34m2019-08-27 02:49:59,266[0m] {[34mdiscovery.py:[0m867} INFO[0m - URL being requested: POST https://www.googleapis.com/bigquery/v2/projects/bigdata-staging/jobs?alt=json[0m [2019-08-27 02:49:59,266] {taskinstance.py:1047} ERROR - unsupported operand type(s) for +: 'NoneType' and 'int' Traceback (most recent call last): File "/usr/local/lib/python3.7/site-packages/airflow/models/taskinstance.py", line 922, in _run_raw_task result = task_copy.execute(context=context) File "/airflow/dags/git/subfolder/my_functions_google.py", line 2502, in execute cluster_fields=self.cluster_fields) File "/airflow/dags/git/subfolder/my_functions_google.py", line 1396, in run_load return self.run_with_configuration(configuration) File "/airflow/dags/git/subfolder/my_functions_google.py", line 1414, in run_with_configuration .execute(num_retries=self.num_retries) File "/usr/local/lib/python3.7/site-packages/googleapiclient/_helpers.py", line 130, in positional_wrapper return wrapped(*args, **kwargs) File "/usr/local/lib/python3.7/site-packages/googleapiclient/http.py", line 851, in execute method=str(self.method), body=self.body, headers=self.headers) File "/usr/local/lib/python3.7/site-packages/googleapiclient/http.py", line 153, in _retry_request for retry_num in range(num_retries + 1): TypeError: unsupported operand type(s) for +: 'NoneType' and 'int' ``` ### Tests - [x] My PR adds the following unit tests __OR__ does not need testing for this extremely good reason: * `TestBigQueryHookWithNumRetries.test_num_retries_is_not_none_by_default` ### Commits - [x] My commits all reference Jira issues in their subject lines, and I have squashed multiple commits if they address the same issue. In addition, my commits follow the guidelines from "[How to write a good git commit message](http://chris.beams.io/posts/git-commit/)": 1. Subject is separated from body by a blank line 1. Subject is limited to 50 characters (not including Jira issue reference) 1. Subject does not end with a period 1. Subject uses the imperative mood ("add", not "adding") 1. Body wraps at 72 characters 1. Body explains "what" and "why", not "how" ### Documentation - [x] In case of new functionality, my PR adds documentation that describes how to use it. - All the public functions and the classes in the PR contain docstrings that explain what it does - If you implement backwards incompatible changes, please leave a note in the [Updating.md](https://github.com/apache/airflow/blob/master/UPDATING.md) so we can assign it to a appropriate release ### Code Quality - [x] Passes `flake8`
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