INNER CODE UNIT · Python

_check_to_py_format

briscverse/ryp · ryp.py:1408

def _check_to_py_format(format: str | dict[str, str],
                        variable_name='format') -> None:
    """
    Checks if format is a valid format argument for to_py().
    
    Args:
        format: the format argument
        variable_name: the name of the format variable, used in error messages
    """
    and_or = lambda valid: \
        f'{", ".join(f"{key!r}" for key in valid[:-1])}, and/or {valid[-1]!r}'
    valid_keys = 'vector', 'matrix', 'data.frame'
    valid_values = 'polars', 'pandas', 'pandas-pyarrow', 'numpy'
    if isinstance(format, dict):
        if not format:
            error_message = f'{variable_name} is an empty dictionary'
            raise ValueError(error_message)
        has_any_non_None_values = False

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