This ensures that wheels will work when moved to machines that have the same subset of the MSVC libraries as a regular CPython install. Specifically, vcruntime##0.dll may not be installed, and should not be a dependency.

Patch from Alexander Belopolsky.

Patch by Martin Panter.

The concept of .pyo files no longer exists. Now .pyc files have an
optional `opt-` tag which specifies if any extra optimizations beyond
the peepholer were applied.

robust at shutdown. If needs to release multiple resources, they are released
even if errors are occured.

robust at shutdown. If needs to release multiple resources, they are released
even if errors are occured.

implementation in issue #21408 they are redundant.

Patch by Marc Abramowitz.

Patch by Karan Goel.