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https://issues.apache.org/jira/browse/AIRFLOW-783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bolke de Bruin resolved AIRFLOW-783.
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Resolution: Fixed
Fix Version/s: 1.8.0
> Python 3 incompatibility in BaseTaskRunner
> ------------------------------------------
>
> Key: AIRFLOW-783
> URL: https://issues.apache.org/jira/browse/AIRFLOW-783
> Project: Apache Airflow
> Issue Type: Bug
> Components: core
> Affects Versions: Airflow 1.8
> Environment: python 3.4
> Reporter: Walter Smith
> Assignee: Walter Smith
> Fix For: 1.8.0
>
>
> The stdout of the subprocess is being used without a codec, so task output is
> lost. Running unit tests will demonstrate this repeatedly.
> Typical backtrace:
> {noformat}
> test_fetch_task_instance (tests.WebUiTests) ... Exception in thread Thread-3:
> Traceback (most recent call last):
> File
> "/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/python3.4/threading.py",
> line 920, in _bootstrap_inner
> self.run()
> File
> "/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/python3.4/threading.py",
> line 868, in run
> self._target(*self._args, **self._kwargs)
> File
> "/Users/walter/infbio/incubator-airflow/airflow/task_runner/base_task_runner.py",
> line 95, in _read_task_logs
> self.logger.info('Subtask: {}'.format(line.rstrip('\n')))
> TypeError: 'str' does not support the buffer interface
> {noformat}
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