def get_node()

in core/util.py [0:0]

• 22 lines of code
• 9 McCabe index (conditional complexity)

def get_node(dict, path, default=NoDefault, *, default_action=None, shell_expand=False):
    if default_action is None:

        def default_action():
            if default is NoDefault:
                raise KeyError(path)
            return default

    keys = split_path(path)
    for i, key in enumerate(keys):
        if dict is None:
            return default_action()
        if not isinstance(dict, Mapping):
            raise Error(f"not an object: {'.'.join(keys[:i])} (type is {type(dict).__name__})")
        try:
            dict = dict[key]
        except KeyError:
            return default_action()
    if dict is None:
        return default_action()
    if shell_expand:
        from .shelllib import shell_expand

        dict = shell_expand(dict)
    return dict