ValidationError when extracting children of a block

[dylanjcastillo]

Hi there,

I'm getting a ValidationError when trying to extract the children of a block using notion.blocks.children.list("XYZ"). This is the error message:

Couldn't get children for block: XYZ, (child_page): 1 validation error for BlockList
results -> 16

The block contains paragraphs, formulas, tables, code, images, and headings. Interestingly, notion.blocks.retrieve("XYZ") works correctly, so the issue seems to be specific to the children generator.

Have you come across this issue before?

[ramnes]

Edit: Answer in comments. The error was raised by notional, not notion-sdk-py.

Hey!

I'm converting this in a discussion, because notion-sdk-py doesn't raise ValidationError by itself since it doesn't do any validation, so it's quite unlikely that the issue is on our side.

Please edit your post with a complete stack trace and more code and I'll be happy to take a look. :)

[dylanjcastillo]

Hey @ramnes, thank you for the quick reply. Here's the complete stack trace:

---------------------------------------------------------------------------
ValidationError                           Traceback (most recent call last)
Cell In[23], line 3
      1 page_id = "XYZ"
----> 3 result = extract_from_page(page_id)

Cell In[22], line 34, in extract_from_page(page_id)
     31 output = {"title": title } | get_metadata(page) | {"blocks": []}
     33 for block in notion.blocks.children.list(page_id):
---> 34     block_output = extract_from_block(block)
     35     if not block_output:
     36         continue

Cell In[22], line 14, in extract_from_block(block)
     12 if block.has_children:
     13     block_output["blocks"] = []
---> 14     for child in notion.blocks.children.list(block):
     15         processed_child = extract_from_block(child)
     16         if not processed_child: 

File ~/Documents/GitHub/test.venv/lib/python3.10/site-packages/notional/iterator.py:149, in EndpointIterator.__call__(self, **kwargs)
    145 self.page_num += 1
    147 page = self._endpoint(start_cursor=self.next_cursor, **kwargs)
--> 149 api_list = ObjectList.parse_obj(page)
    151 for obj in api_list.results:
...
File ~/Documents/GitHub/test/.venv/lib/python3.10/site-packages/pydantic/main.py:342, in pydantic.main.BaseModel.__init__()

ValidationError: 1 validation error for BlockList
results -> 16
  Unsupported sub-type: equation (type=type_error)

Looks like an issue with equation?

[ramnes]

The error is raised by notional, not notion-sdk-py. :)

[dylanjcastillo]

Oh, you're completely correct. Sorry about that!