[issue18520] Fixes bugs found by pyfailmalloc during Python initialization

[Roundup Robot]

Roundup Robot added the comment:

New changeset fc718c177ee6 by Victor Stinner in branch 'default':
Issue #18520: Add a new PyStructSequence_InitType2() function, same than
http://hg.python.org/cpython/rev/fc718c177ee6

New changeset 9b77b3ee6fb8 by Victor Stinner in branch 'default':
Issue #18520: PyErr_NoMemory() now fails with a fatal error if it is called
http://hg.python.org/cpython/rev/9b77b3ee6fb8

New changeset 31796b188bec by Victor Stinner in branch 'default':
Issue #18520: Fix _PySys_Init(), handle PyDict_SetItemString() errors
http://hg.python.org/cpython/rev/31796b188bec

New changeset d38348173c46 by Victor Stinner in branch 'default':
Issue #18520: initsite() is a little bit more verbose when import site fails
http://hg.python.org/cpython/rev/d38348173c46

New changeset 9267a0b836b7 by Victor Stinner in branch 'default':
Issue #18520: Fix PyFunction_NewWithQualName() error handling
http://hg.python.org/cpython/rev/9267a0b836b7

New changeset 4a69dbe71aeb by Victor Stinner in branch 'default':
Issue #18520: Fix _PyDict_GetItemId(), suppress _PyUnicode_FromId() error
http://hg.python.org/cpython/rev/4a69dbe71aeb

New changeset a4998e8fd7fc by Victor Stinner in branch 'default':
Issue #18520: Fix initstdio(), handle PySys_SetObject() failure
http://hg.python.org/cpython/rev/a4998e8fd7fc

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<http://bugs.python.org/issue18520>
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