Did anyone come up with a fix for these? It's true that OverflowError and MemoryError are returned pretty randomly when we detect that an allocation is not going to fit. I think MemoryError is better though, so perhaps those uses of OverflowError should be fixed. I doubt that there are any apps (except unit tests for this specific feature) that depend on such specific errors.
On Mon, Jul 21, 2008 at 11:26 AM, Georg Brandl <[EMAIL PROTECTED]> wrote: > In a debug-build 3k, do this (32-bit machine): > > Python 3.0b2+ (py3k:65171M, Jul 21 2008, 20:08:20) > [GCC 4.2.4 (Gentoo 4.2.4 p1.0)] on linux2 > Type "help", "copyright", "credits" or "license" for more information. >>>> "a"*1000000000 > instinstTraceback (most recent call last): > File "<stdin>", line 1, in <module> > MemoryError > [41296 refs] >>>> "a"*1000000000 > inst[1] 21400 segmentation fault ./python > > Here, something fishy is probably going on in the unicode free list. > Compare with 2.6: > > Python 2.6b2+ (trunk:65131:65163M, Jul 21 2008, 19:58:07) > [GCC 4.2.4 (Gentoo 4.2.4 p1.0)] on linux2 > Type "help", "copyright", "credits" or "license" for more information. >>>> u"a"*1000000000 > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > MemoryError > [34330 refs] >>>> u"a"*1000000000 > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > MemoryError > [34332 refs] > > Still, the refcount seems to leak. > > Also: > >>>> b"a"*sys.maxsize > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > MemoryError > [41297 refs] >>>> b"a"*sys.maxsize > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > File "<stdin>", line 1, in <module> > MemoryError > [41317 refs] >>>> b"a"*sys.maxsize > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > File "<stdin>", line 1, in <module> > File "<stdin>", line 1, in <module> > MemoryError > [41337 refs] > > This probably has to do with the fact that this MemoryError is a prebuilt > instance. > > Finally: > >>>> "a"*sys.maxsize > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > OverflowError: repeated string is too long > [41379 refs] > > Nothing wrong here, but the exception is a different one. > > Georg > > -- > Thus spake the Lord: Thou shalt indent with four spaces. No more, no less. > Four shall be the number of spaces thou shalt indent, and the number of thy > indenting shall be four. Eight shalt thou not indent, nor either indent thou > two, excepting that thou then proceed to four. Tabs are right out. > > _______________________________________________ > Python-3000 mailing list > Python-3000@python.org > http://mail.python.org/mailman/listinfo/python-3000 > Unsubscribe: > http://mail.python.org/mailman/options/python-3000/guido%40python.org > -- --Guido van Rossum (home page: http://www.python.org/~guido/) _______________________________________________ Python-3000 mailing list Python-3000@python.org http://mail.python.org/mailman/listinfo/python-3000 Unsubscribe: http://mail.python.org/mailman/options/python-3000/archive%40mail-archive.com
