Message 84534 - Python tracker

➜

This issue tracker has been migrated to GitHub, and is currently read-only.
For more information, see the GitHub FAQs in the Python's Developer Guide.

Author	vstinner
Recipients	ajaksu2, laughingboy0, vstinner
Date	2009-03-30.10:51:54
SpamBayes Score	8.127242e-05
Marked as misclassified	No
Message-id	<1238410316.68.0.521842162188.issue1583863@psf.upfronthosting.co.za>
In-reply-to

Content
Case "S" (type str): "%s" uses _PyObject_Str() which checks the object type with PyString_CheckExact(). Case "U" (type unicode) "%s" uses PyUnicode_Check() and then calls PyUnicode_Format(). PyUnicode_Format() uses PyUnicode_Check() to check the object object. It should uses PyUnicode_CheckExact() instead. xxx_CheckExact() is different than xxx_Check(): exact is only true for the base type, whereas the the second is also true for subclass.

Case "S" (type str): "%s" uses _PyObject_Str() which checks the object 
type with PyString_CheckExact().

Case "U" (type unicode) "%s" uses PyUnicode_Check() and then calls 
PyUnicode_Format(). PyUnicode_Format() uses PyUnicode_Check() to check 
the object object. It should uses PyUnicode_CheckExact() instead.

xxx_CheckExact() is different than xxx_Check(): exact is only true for 
the base type, whereas the the second is also true for subclass.

History
Date	User	Action	Args
2009-03-30 10:51:57	vstinner	set	recipients: + vstinner, ajaksu2, laughingboy0
2009-03-30 10:51:56	vstinner	set	messageid: <1238410316.68.0.521842162188.issue1583863@psf.upfronthosting.co.za>
2009-03-30 10:51:54	vstinner	link	issue1583863 messages
2009-03-30 10:51:54	vstinner	create