tomlkit 0.12.5 : Encoder contract interferes with external TypeErrors raised in encoders #355
Description
Problem
register_encoder expects encoder functions to raise a TypeError when encoding fails. TypeErrors are an error class not specific to tomlkit, however, and this causes interference and unclear tracebacks.
For example:
> /Users/user/bla/__main__.py(50)encoder()
-> if any(
(Pdb) n
TypeError: any() takes exactly one argument (6 given)
(Pdb) c
...
File "/Users/user/bla/.venv/lib/python3.12/site-packages/tomlkit/items.py", line 218, in item
raise _ConvertError(f"Invalid type {type(value)}")
tomlkit.items._ConvertError: Invalid type <class 'Legitimateclass'>
Solution
Change the API to use a tomlkit-specific and fine-grained, encoder-specific exception class.
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