`KeyAlreadyPresent` exception for a seemingly valid document.

[canburak]

Following document looks like legit, but when I try to parse it I get tomlkit.exceptions.KeyAlreadyPresent: Key "scripts" already exists. exception with tomlkit 0.7.2.

document

[tool.poetry]

[tool.isort]

[tool.poetry.dev-dependencies]

[build-system]

[tool.poetry.scripts]

stacktrace

Traceback (most recent call last):
  File "/Users/ccilingi/prepos/tomlbug/tomltest.py", line 21, in <module>
    regular_dict = dict(parsed)
  File "/Users/ccilingi/Library/Caches/pypoetry/virtualenvs/tomlbug-EdMsyBII-py3.9/lib/python3.9/site-packages/tomlkit/container.py", line 559, in __getitem__
    return OutOfOrderTableProxy(self, idx)
  File "/Users/ccilingi/Library/Caches/pypoetry/virtualenvs/tomlbug-EdMsyBII-py3.9/lib/python3.9/site-packages/tomlkit/container.py", line 699, in __init__
    self._internal_container.append(k, v)
  File "/Users/ccilingi/Library/Caches/pypoetry/virtualenvs/tomlbug-EdMsyBII-py3.9/lib/python3.9/site-packages/tomlkit/container.py", line 169, in append
    current.append(k, v)
  File "/Users/ccilingi/Library/Caches/pypoetry/virtualenvs/tomlbug-EdMsyBII-py3.9/lib/python3.9/site-packages/tomlkit/items.py", line 922, in append
    self._value.append(key, _item)
  File "/Users/ccilingi/Library/Caches/pypoetry/virtualenvs/tomlbug-EdMsyBII-py3.9/lib/python3.9/site-packages/tomlkit/container.py", line 175, in append
    raise KeyAlreadyPresent(key)
tomlkit.exceptions.KeyAlreadyPresent: Key "scripts" already exists.

code

You can run the following python script to reproduce:

from tomlkit import parse
import ast
from pprint import pprint

doc = """
[tool.poetry]

[tool.isort]

[tool.poetry.dev-dependencies]

[build-system]

[tool.poetry.scripts]
"""

parsed = parse(doc)
as_str = str(parsed)
eval_dict = ast.literal_eval(as_str)
pprint(eval_dict)
regular_dict = dict(parsed)

This is the contents of eval_dict:

{'build-system': {},
 'tool': {'isort': {}, 'poetry': {'dev-dependencies': {}, 'scripts': {}}}}