def flatten_dict()

in lm_human_preferences/utils/core.py [0:0]

• 12 lines of code
• 4 McCabe index (conditional complexity)

def flatten_dict(nested, sep='.'):
    def rec(nest, prefix, into):
        for k, v in nest.items():
            if sep in k:
                raise ValueError(f"separator '{sep}' not allowed to be in key '{k}'")
            if isinstance(v, collections.Mapping):
                rec(v, prefix + k + sep, into)
            else:
                into[prefix + k] = v
    flat = {}
    rec(nested, '', flat)
    return flat