Message 360078 - Python tracker

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Author	vstinner
Recipients	gvanrossum, pablogsal, pfalcon, ppperry, terry.reedy, vstinner
Date	2020-01-15.21:45:42
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1579124742.94.0.141189163255.issue32615@roundup.psfhosted.org>
In-reply-to

Content
I modified ceval.c to accept dict subclasses when I was working on PEP 416: https://www.python.org/dev/peps/pep-0416/ This PEP motivation was to implement a sandbox. The PEP was rejected. Later, I closed my pysandbox beause it was "broken by design": https://lwn.net/Articles/574215/ Paul Sokolovsky wrote in bpo-36220 than his idea is also to implement a sandbox: https://bugs.python.org/issue36220#msg359046 IMHO we should reject dict subclasses to make Python (especially ceval.c) more efficient. The global type must be checked at every place where it's possible to specify or override globals. Like the exec() function.

I modified ceval.c to accept dict subclasses when I was working on PEP 416:
https://www.python.org/dev/peps/pep-0416/

This PEP motivation was to implement a sandbox. The PEP was rejected. Later, I closed my pysandbox beause it was "broken by design":
https://lwn.net/Articles/574215/

Paul Sokolovsky wrote in bpo-36220 than his idea is also to implement a sandbox:
https://bugs.python.org/issue36220#msg359046

IMHO we should reject dict subclasses to make Python (especially ceval.c) more efficient. The global type must be checked at every place where it's possible to specify or override globals. Like the exec() function.

History
Date	User	Action	Args
2020-01-15 21:45:42	vstinner	set	recipients: + vstinner, gvanrossum, terry.reedy, pfalcon, ppperry, pablogsal
2020-01-15 21:45:42	vstinner	set	messageid: <1579124742.94.0.141189163255.issue32615@roundup.psfhosted.org>
2020-01-15 21:45:42	vstinner	link	issue32615 messages
2020-01-15 21:45:42	vstinner	create