def stringify()

in mujoco_worldgen/parser/normalize.py [0:0]

• 36 lines of code
• 15 McCabe index (conditional complexity)

def stringify(xml_dict):
    '''
    De-normalize xml dictionary (or list), converting all pythonic values (arrays, bools)
        into strings that will be used in the final XML.
    This is the opposite of normalize().
    '''
    if isinstance(xml_dict, OrderedDict):
        enumeration = list(xml_dict.items())
    elif isinstance(xml_dict, list):
        enumeration = enumerate(xml_dict)

    for key, value in enumeration:
        # Handle a list of nodes to stringify
        if isinstance(value, list):
            if len(value) == 0:
                del xml_dict[key]
            else:
                if sum([isinstance(v, (int, float, np.float32, np.int)) for v in value]) == len(value):
                    xml_dict[key] = vec2str(value)
                else:
                    stringify(value)
        elif isinstance(value, OrderedDict):
            stringify(value)
        elif isinstance(value, (np.ndarray, tuple)):
            xml_dict[key] = vec2str(value)
        elif isinstance(value, float):
            xml_dict[key] = num2str(value)  # format with fixed decimal places
        elif isinstance(value, bool):  # MUST COME BEFORE int() CHECK
            xml_dict[key] = str(value).lower()  # True -> 'true', etc.
        elif isinstance(value, int):  # isinstance(True, int) -> True.  SAD!
            xml_dict[key] = str(value)  # Format without decimal places
        elif isinstance(value, str):
            pass  # Value is already fine
        elif value is None:
            pass
        else:
            raise ValueError(
                'Bad type for key {}: {}'.format(key, type(value)))