NumberingPart.new NotImplementedError

[KaHuier]

the simple code

from docx import Document

doc = Document(r"xxxx.docx")
print(doc.part.numbering_part)

The following issues have occurred

Traceback (most recent call last):
 File "x.py", line 4, in <module>
 print(doc.part.numbering_part)
 File "\mars-win-amd64-python3.9\lib\site-packages\docx\shared.py", line 242, in __get__
 value = self._fget(obj)
 File "\mars-win-amd64-python3.9\lib\site-packages\docx\parts\document.py", line 99, in numbering_part
 numbering_part = NumberingPart.new()
 File "\mars-win-amd64-python3.9\lib\site-packages\docx\parts\numbering.py", line 15, in new
 raise NotImplementedError
NotImplementedError

After investigation, it was found that the 'NumberingPart. new()' used in the 'numbing_part' did not implement the function.

The following is the code used by 'NumberingPart.new()'

class NumberingPart(XmlPart):
 """Proxy for the numbering.xml part containing numbering definitions for a document
 or glossary."""

 @classmethod
 def new(cls):
 """Return newly created empty numbering part, containing only the root
 ``<w:numbering>`` element."""
 raise NotImplementedError

[roydad]

I have the same problem.