Message 99742 - Python tracker

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Author	LukMak
Recipients	LukMak
Date	2010-02-22.15:02:49
SpamBayes Score	2.0490154e-06
Marked as misclassified	No
Message-id	<1266850971.35.0.609104606794.issue7985@psf.upfronthosting.co.za>
In-reply-to

Content
Execution: >>> l=[] >>> l.append(l) >>> l [[...]] >>> l[0] [[...]] >>> l[0][0][0] [[...]] >>> eval('l'+'[0]'10) [[...]] >>> eval('l'+'[0]'666) [[...]] >>> eval('l'+'[0]'*999999) Segmentation fault Environment: 2.6.24-27-generic #1 SMP, Ubuntu 8.04.4 LTS, Both Python 2.5.2 from distro repo and Python 3.1.1 compiled by me. But crash seems to be platform and version independent. Comment: Should throw RuntimeError: maximum recursion depth exceeded instead of SIGSEGV?

Execution:
>>> l=[]
>>> l.append(l)
>>> l
[[...]]
>>> l[0]
[[...]]
>>> l[0][0][0]
[[...]]
>>> eval('l'+'[0]'*10)
[[...]]
>>> eval('l'+'[0]'*666)
[[...]]
>>> eval('l'+'[0]'*999999)
Segmentation fault

Environment:
2.6.24-27-generic #1 SMP, Ubuntu 8.04.4 LTS, Both Python 2.5.2 from distro repo and Python 3.1.1 compiled by me. But crash seems to be platform and version independent.

Comment:
Should throw RuntimeError: maximum recursion depth exceeded instead of SIGSEGV?

History
Date	User	Action	Args
2010-02-22 15:02:51	LukMak	set	recipients: + LukMak
2010-02-22 15:02:51	LukMak	set	messageid: <1266850971.35.0.609104606794.issue7985@psf.upfronthosting.co.za>
2010-02-22 15:02:50	LukMak	link	issue7985 messages
2010-02-22 15:02:49	LukMak	create