[New-bugs-announce] [issue7574] PyUnicode_FromFormat broken and not documented for 2.x
report at bugs.python.org
Thu Dec 24 12:54:41 CET 2009
New submission from Ronald Oussoren <ronaldoussoren at mac.com>:
Include/unicodeobject.h includes prototypes for PyUnicode_FromFormat and
PyUnicode_FromFormatV in both 2.6 and 2.7, but those functions are not
included in the documention.
And worse, the implementation contains bugs: the %R format code tries to
include the repr() of an object and blindly assumes that the result of
PyObject_Repr is a unicode string. In the 2.x tree PyObject_Repr usually
(but not allways) returns a regular string (str instead of unicode).
The same problem is present in the implementation of %S.
For the %U and %V formats the code does typechecking in an assert
statement rather than always testing and bailing out using a NULL result
from the function.
components: Documentation, Interpreter Core
nosy: georg.brandl, ronaldoussoren
stage: needs patch
title: PyUnicode_FromFormat broken and not documented for 2.x
versions: Python 2.6, Python 2.7
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