[issue35984] test__xxsubinterpreters leaked [3, 4, 3] memory blocks, sum=1

[Eric Snow]

Eric Snow <ericsnowcurrently at gmail.com> added the comment:

FYI, the _xxsubinterpreters module serves several purposes.  First, it allows us to more thoroughly test the subinterpreter functionality of CPython (doing so via _testembed and _testcapi is messy), effectively in test__xxsubinterpreters.  Second, it is the foundation for helpers (which I intend on adding to test.support in the 3.8 time frame) for easily using subinterpreters in the test suite in lieu of subprocesses.  Third, ultimately it will be the low-level implementation of PEP 554.

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