`ParseError` exception when handling TOML AoT

Tái hiện lỗi với tài liệu TOML từ issue, sau đó lần theo luồng phân tích cú pháp qua parser.py, container.py và items.py bằng stack trace được cung cấp. Việc sửa lỗi hoàn tất khi tài liệu được phân tích cú pháp thành công và tomlkit.dumps(parsed) tạo ra đầu ra không có ParseError.

Hi!

I'm trying to parse a TOML document with tomlkit version 0.13.3 and getting this exception:
tomlkit.exceptions.ParseError: Key "fruits" already exists.

The document seems valid to me.

Code

import tomlkit


DOCUMENT = """
[[shops.aaa.fruits]]
id = "apple"

[[shops.bbb.fruits]]
id = "orange"

[[shops.aaa.fruits]]
id = "banana"
"""

parsed = tomlkit.parse(DOCUMENT)

print(tomlkit.dumps(parsed))

Expected

The document is parsed successfully.

Actual

Parsing fails with a ParseError.

Stacktrace

Traceback (most recent call last):
  File "/Users/wfzx/dev/py/toml/venv/lib/python3.12/site-packages/tomlkit/parser.py", line 161, in parse
    body.append(key, value)
  File "/Users/wfzx/dev/py/toml/venv/lib/python3.12/site-packages/tomlkit/container.py", line 252, in append
    current.append(k, v)
  File "/Users/wfzx/dev/py/toml/venv/lib/python3.12/site-packages/tomlkit/items.py", line 1632, in append
    _item = self._value[key]
            ~~~~~~~~~~~^^^^^
  File "/Users/wfzx/dev/py/toml/venv/lib/python3.12/site-packages/tomlkit/container.py", line 652, in __getitem__
    item = self.item(key)
           ^^^^^^^^^^^^^^
  File "/Users/wfzx/dev/py/toml/venv/lib/python3.12/site-packages/tomlkit/container.py", line 476, in item
    return OutOfOrderTableProxy(self, idx)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/wfzx/dev/py/toml/venv/lib/python3.12/site-packages/tomlkit/container.py", line 846, in __init__
    self._internal_container._raw_append(k, v)
  File "/Users/wfzx/dev/py/toml/venv/lib/python3.12/site-packages/tomlkit/container.py", line 319, in _raw_append
    raise KeyAlreadyPresent(key)
tomlkit.exceptions.KeyAlreadyPresent: Key "fruits" already exists.

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/Users/wfzx/dev/py/toml/main.py", line 15, in <module>
    parsed = tomlkit.parse(DOCUMENT)
             ^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/wfzx/dev/py/toml/venv/lib/python3.12/site-packages/tomlkit/api.py", line 93, in parse
    return Parser(string).parse()
           ^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/wfzx/dev/py/toml/venv/lib/python3.12/site-packages/tomlkit/parser.py", line 163, in parse
    raise self.parse_error(ParseError, str(e)) from e
tomlkit.exceptions.ParseError: Key "fruits" already exists. at line 9 col 0