[Python-Dev] test_gzip/test_tarfile failure om AMD64 (original) (raw)

Bob Ippolito bob at redivi.com
Wed May 31 17:52:54 CEST 2006

On May 31, 2006, at 8:31 AM, Tim Peters wrote:

I'm afraid a sabbatical year isn't long enough to understand what the struct module did or intends to do by way of range checking <0.7_ _wink>.

Is this intended? This is on a 32-bit Windows box with current trunk:

from struct import pack as p p("I", 2**32 + 2343) C:\Code\python\lib\struct.py:63: DeprecationWarning: 'I' format requires 0 <= number <= 4294967295 return o.pack(*args) '\x00\x00\x00\x00' The warning makes sense, but the result doesn't make sense to me. In Python 2.4.3, that example raised OverflowError, which seems better than throwing away all the bits without an exception.

Throwing away all the bits is a bug, it's supposed to mask with
0xffffffffL

-bob

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