[Python-3000] MemoryError oddities

[Antoine Pitrou]

Guido van Rossum <guido <at> python.org> writes:
> 
> FWIW, are there any legitimate occurrences of OverflowError in Py3k
> now that ints have unlimited range?

Legitimate:

>>> n = 2 ** 16384
>>> float(n)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
OverflowError: Python int too large to convert to C double

Perhaps a bit less legitimate but still :)

>>> r = range(n)
>>> len(r)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
OverflowError: Python int too large to convert to C ssize_t

Speaking of which, http://bugs.python.org/issue2690 (« Precompute range length
», which has the - positive, IMHO - side effect that range objects of length
greater than sys.maxsize cannot be created at all) is still awaiting a
resolution.

Regards

Antoine.