Better multiple_outputs inferral for @task.python #20800
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ashb
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This switches the implementation from using inspect.signature() (which uses __annotations__ internally) to typing.get_type_hints() to provide better type resolution from "stringified" annotations. This better supports 'from __future__ import annotation' and other non-define-time resolved annotations. To improve test writability and readability, TestAirflowTaskDecorator is converted from unittest to pytest-style for better version-based test-skipping fuinctionalities.
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This builds on #19608 and switches the implementation from using
inspect.signature()(which uses__annotations__internally) totyping_extension.get_type_hints()(not thetypingone for better backward compatibility) to provide better type resolution from “stringified” annotations. This better supportsfrom __future__ import annotationand other non-define-time resolved annotations.To improve test writability and readability,
TestAirflowTaskDecoratoris converted from unittest to pytest-style for better version-based test-skipping fuinctionalities.cc @josh-fell