bpo-22257: Small changes for PEP 432. by ericsnowcurrently · Pull Request #1728 · python/cpython

PEP 432 specifies a number of large changes to interpreter startup code, including exposing a cleaner C-API. The major changes depend on a number of smaller changes. This patch includes all those smaller changes. (The commits here each stand on their own so I'd rather the PR not be squashed.)

Note that regardless of the status of the PEP, the changes proposed by the PEP are an improvement to interpreter startup. As such we are making the changes, but keeping the C-API provisional.