Python dump non-printable object as yaml (not guaranteed to be production ready, just a personal utility).

obj_to_yaml.py

'''
obj_to_yaml() can print an object to a Yaml-like string.
This is useful to inspect complex objects in a friendlier manner.
'''

from typing import Any


def is_non_printable(obj: Any) -> bool:
    return hasattr(obj, '__dict__')


def is_static(obj: Any, member_name: str) -> bool:
    return hasattr(type(obj), member_name)


def obj_to_yaml(name: str, obj: Any, max_depth=2, indent=1) -> str:
    class_name = obj.__class__.__name__

    lines = [f'{"  " * (indent - 1)}{name}: # {class_name}']

    if max_depth <= 0:
        return lines[0]

    for prop in dir(obj):
        if prop.startswith('_') or is_static(obj, prop):
            continue

        try:
            value = getattr(obj, prop)
        except Exception:
            continue

        if callable(value):
            continue
        elif is_non_printable(value):
            lines.append(obj_to_yaml(prop, value, max_depth - 1, indent + 1))
            continue
        elif isinstance(value, tuple):
            text = f'[{", ".join(value)}]'
        elif isinstance(value, (str, bytes)):
            text = f"'{value}'"
        elif value is None:
            text = 'null'
        elif isinstance(value, bool):
            text = 'true' if value else 'false'
        else:
            text = str(value)

        lines.append(f'{"  " * indent}{prop}: {text}')

    return '\n'.join(lines)