[3.6] bpo-26184: import.rst: Improve versionchanged note (GH-277) by Mariatta · Pull Request #320 · python/cpython
.. versionchanged:: 3.5 A :exc:`DeprecationWarning` is raised when ``exec_module()`` is defined but ``create_module()`` is not. Starting in Python 3.6 it will be an error to not define ``create_module()`` on a loader attached to a ModuleSpec. ``create_module()`` is not.
.. versionchanged:: 3.6 An :exc:`ImportError` is raised when ``exec_module()`` is defined but ``create_module`` is not.
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