at()

Retrieves the value at the given path of the object.

Implementation

The path value can be a string or an array of strings or integers. If a path value is an array, it will be used to traverse an array-liked object. Args: obj: The object to retrieve values from. *paths: The path(s) to retrieve values from. Returns: A list of values at the given paths.

Example

at({'a': {'b': 2}}, 'a.b')

Expected output: [2]

Source Code

                        def at(obj: Dict[Any, Any], *paths: str) -> List[Any]:
    results: List[Any] = []
    for path in paths:
        current = obj
        # split on dots and brackets
        parts = re.findall(r"[^.\[\]]+", path)
        for p in parts:
            if isinstance(current, dict):
                current = current.get(p)
            elif isinstance(current, (list, tuple)):
                try:
                    idx = int(p)
                    current = current[idx]
                except Exception:
                    current = None
            else:
                current = None
            if current is None:
                break
        results.append(current)
    return results
                    