[Python-Dev] PEP-393: request for keeping PyUnicode_EncodeDecimal() (original) (raw)

Stefan Krah stefan at bytereef.org
Sat Oct 1 16:58:59 CEST 2011

"Martin v. Löwis" <martin at v.loewis.de> wrote:

> the subject says it all. PyUnicodeEncodeDecimal() is listed among > the deprecated functions.

Please see the section on deprecation. None of the deprecated functions will be removed for a period of five years, and afterwards, they will be kept until usage outside of the core is low. Most likely, this means they will be kept until Python 4.

I've to confess that I missed that; sounds good.

In addition, you could also take the same approach as decimal.py, i.e. do

self.int = str(int(intpart+fracpart)) This would improve compatibility with the decimal.py implementation, which doesn't use PyUnicodeEncodeDecimal either (but instead goes through PyUnicodeTransformDecimalAndSpaceToASCII).

longobject.c still used PyUnicode_EncodeDecimal() until 10 months ago (8304bd765bcf). I missed the PyUnicode_TransformDecimalToASCII() commit, probably because #10557 is still open.

That's why I wouldn't like to implement the function myself at least until the API is settled.

I see this in the new code:

#if 0 static PyObject * unicode__decimal2ascii(PyObject *self) { return PyUnicode_TransformDecimalAndSpaceToASCII(self); } #endif

Will PyUnicode_TransformDecimalAndSpaceToASCII() be public?

Stefan Krah

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