[issue39576] Surprising MemoryError in `decimal` with MAX_PREC

[Pablo Galindo Salgado]

Pablo Galindo Salgado <pablogsal at gmail.com> added the comment:

> In other words, contrary to your earlier dismissal, you did NOT
run _decimal on AIX with MAX_PREC but just ran the 3.7.6 tests
that do not include any tests with MAX_PREC.

I did, and it raises MemoryError:

❯ uname -a
AIX 1 7 powerpc 00CCAD974C00 AIX

❯ python3.7 --version
Python 3.7.6

❯ python3.7 Lib/test/test_decimal.py

...

======================================================================
ERROR: test_maxcontext_exact_arith (__main__.CWhitebox)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "Lib/test/test_decimal.py", line 5506, in test_maxcontext_exact_arith
    self.assertEqual(Decimal(4).sqrt(), 2)
MemoryError

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39576>
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