Fix Python-based decorators templating #36103
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Templating of Python-based decorators has been broken since implementation. The decorators used template_fields definition as defined originally in PythonOperator rather than the ones from virtualenv because template fields were redefined in _PythonDecoratedOperator class and they took precedence (MRU). This PR add explicit copying of template_fields from the operators that they are decorating. Fixes: apache#36102
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I feel this entire hierarchy of operators needs some revamp, the inheritance is getting too deep and there are too many operator classes. But this is a good first step since it at least gets the behaviour right. |
uranusjr
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Dec 7, 2023
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Yeah. It's a bit |
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Templating of Python-based decorators has been broken since implementation. The decorators used template_fields definition as defined originally in PythonOperator rather than the ones from virtualenv because template fields were redefined in _PythonDecoratedOperator class and they took precedence (MRU). This PR add explicit copying of template_fields from the operators that they are decorating. Fixes: #36102 (cherry picked from commit 3904206)
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Templating of Python-based decorators has been broken since implementation. The decorators used template_fields definition as defined originally in PythonOperator rather than the ones from virtualenv because template fields were redefined in _PythonDecoratedOperator class and they took precedence (MRU).
This PR add explicit copying of template_fields from the operators that they are decorating.
Fixes: #36102
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