[issue7330] PyUnicode_FromFormat: implement width and precision for %s, %S, %R, %V, %U, %A

[STINNER Victor]

STINNER Victor <victor.stinner at haypocalc.com> added the comment:

I closed #10833 as invalid, because it is a regression of Python 3. PyErr_String() uses PyString_FromFormatV() in Python 2, which supports precision for %s, whereas it uses PyUnicode_FromFormatV() in Python 3, which never supported precision for %s.

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<http://bugs.python.org/issue7330>
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