bpo-39573: Use Py_IS_TYPE to check for types

[shihai1991]

https://bugs.python.org/issue39573

[shihai1991]

rough idea: Can we create a review robot to remind committer use the common macros or inline functions?

[corona10]

This PR can be part of bpo-39573 which actually introducing and applying Py_IS_TYPE for the first time.

[corona10]

We often do not accept the PR which can be just refactoring work with insignificant reason.
However, this PR is handling module what #18521 did not.
So I approve of this change as the exception.

But we need to hear @vstinner 's opinion :)

Thanks for the work

[shihai1991]

This PR can be part of bpo-39573 which actually introducing and applying Py_IS_TYPE for the first time.

yeap. You are the author ;)

[corona10]

@shihai1991
But I approve the current change, so if the PR is updated for the more module.
Please request a review again.

[shihai1991]

@shihai1991
But I approve the current change, so if the PR is updated for the more module.
Please request a review again.

Thanks, I have checked all modules, there have no more should be ported.