Do not require jiter to avoid dependency on Rust

[barracuda156]

Confirm this is a feature request for the Python library and not the underlying OpenAI API.

• This is a feature request for the Python library

Describe the feature or improvement you're requesting

Is it possible to make dependency on jiter optional? pydantic 1.x exists in rust-free version, and this project supports pydantic 1.9.x:

openai-python/pyproject.toml

Line 12 in 7193688

"pydantic>=1.9.0, <3",

It will be nice to avoid requiring Rust here.

Additional context

Rust is a very heavy dependency to build. Also, it is not supported on a number of non-mainstream platforms, where Python 3.x works fine.

[RobertCraigie]

Unfortunately we can't really change how this works without causing breaking changes. For now I'd recommend trying to work around this in some way by providing your own jiter implementation that just raises an error

# jiter.py
def from_json(*args, **kwargs):
  raise NotImplementedError('jiter is not available')

Of course then you can't use the parsing helpers but you should be able to use the rest of the SDK.