[issue41211] PyLong_FromUnicodeObject document is wrong

[Inada Naoki]

New submission from Inada Naoki <songofacandy at gmail.com>:

```
.. c:function:: PyObject* PyLong_FromUnicodeObject(PyObject *u, int base)

   Convert a sequence of Unicode digits in the string *u* to a Python integer
   value.  The Unicode string is first encoded to a byte string using
   :c:func:`PyUnicode_EncodeDecimal` and then converted using
   :c:func:`PyLong_FromString`.
```

PyUnicode_EncodeDecimal is not used actually.
It uses private and undocumented `_PyUnicode_TransformDecimalAndSpaceToASCII` function instead.

The document of PyFloat_FromString() doesn't mention about how it convert unicode string to digits. Let's remove the second sentence.

----------
assignee: docs at python
components: Documentation
messages: 373009
nosy: docs at python, inada.naoki
priority: normal
severity: normal
status: open
title: PyLong_FromUnicodeObject document is wrong
versions: Python 3.10, Python 3.8, Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue41211>
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