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https://issues.apache.org/jira/browse/AIRFLOW-2099?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ash Berlin-Taylor resolved AIRFLOW-2099.
----------------------------------------
Resolution: Fixed
Fix Version/s: 2.0.0
Issue resolved by pull request #3571
[https://github.com/apache/incubator-airflow/pull/3571]
> Task details cannot be shown when PythonOperator calls partial function /
> class instance with __call__
> ------------------------------------------------------------------------------------------------------
>
> Key: AIRFLOW-2099
> URL: https://issues.apache.org/jira/browse/AIRFLOW-2099
> Project: Apache Airflow
> Issue Type: Bug
> Components: ui
> Affects Versions: Airflow 1.8
> Reporter: Matthew Revell
> Assignee: Matthew Revell
> Priority: Minor
> Fix For: 2.0.0
>
>
> There are several scenarios where the inspect.getsource() method fails with:
> {{object at 0x00000000> is not a module, class, method, function, traceback,
> frame, or code object}}
> One such scenario is described in
> [AIRFLOW-1027|https://issues.apache.org/jira/browse/AIRFLOW-1027] where a
> partial function is used. Another is when an instance of a class which
> implements __call__() is used.
> Example:
> {{class MyClass(object):}}
> {{ def __init__(self):}}
> {{ pass}}
> {{ def __call__(self):}}
> {{ pass}}
> {{my_class = MyClass()}}
> {{dag_task = PythonOperator(}}
> {{ task_id='dag_task',}}
> {{ dag=dag, }}
> {{ python_callable=my_class,}}
> {{)}}
> There exists a PR for AIRFLOW-1027, however, this fix does not address this
> other scenario, and also does not guard against any other edge cases which my
> result in this error in future.
> A better solution would be to catch known scenarios with work arounds, and
> default to reporting that the source is unavailable for unknown cases. This
> would at least display the Task Instance details in every case.
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