Bug: pydantic_models_to_grammar_examples.py is broken

[maruel]

What happened?

3fd62a6 by @compilade broke pydantic_models_to_grammar.py

@jaime-m-p FYI

Name and Version

Reproduced on:

• python 3.10.12 on Ubuntu 22.04.4 LTS
• python 3.12.2 on macOS 14.5

The regression occurred in 3fd62a6

What operating system are you seeing the problem on?

Linux, Mac

Relevant log output

# Start a server
./llama-server --model ./models/Mistral-7B-Instruct-v0.3.fp16.gguf -ngl 9999 --port 8080

# Commands
python3 -m venv venv
source venv/bin/activate
pip install docstring_parser pydantic requests
cd examples
python3 pydantic_models_to_grammar_examples.py

# Outputs
Traceback (most recent call last):
  File "$HOME/llama.cpp/examples/pydantic_models_to_grammar_examples.py", line 75, in <module>
    gbnf_grammar, documentation = generate_gbnf_grammar_and_documentation(
  File "$HOME/llama.cpp/examples/pydantic_models_to_grammar.py", line 1080, in generate_gbnf_grammar_and_documentation
    documentation = generate_markdown_documentation(
  File "/$HOME/llama.cpp/examples/pydantic_models_to_grammar.py", line 721, in generate_markdown_documentation
    documentation += generate_field_markdown(
  File "$HOME/llama.cpp/examples/pydantic_models_to_grammar.py", line 775, in generate_field_markdown
    field_text = f"{indent}{field_name} ({format_model_and_field_name(field_type.__name__)})"
AttributeError: 'str' object has no attribute '__name__'. Did you mean: '__ne__'?

# Trying previous version:
git checkout 3fd62a6b1c9ca7b7c0093e984cc9c133c6f2726d~1
python3 pydantic_models_to_grammar_examples.py

# (Success on python3.12, different error on python3.10)

[compilade]

@maruel Thanks for reporting, I'll look into this.

At first glance it's not obvious which line change(s) from #8341 caused this, but I'll try to fix this.

[compilade]

@maruel I found the problem and pushed a fix in #8474.