File size: 668 Bytes
2b4b714 48acd77 2b4b714 523aeee b548ba5 48acd77 523aeee b548ba5 523aeee 2b4b714 48acd77 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 |
from queue import Queue
from typing import Any, Dict
class Singleton(type):
_instances = {}
def __call__(cls, *args, **kwargs):
if cls not in cls._instances:
cls._instances[cls] = super(Singleton, cls).__call__(*args, **kwargs)
return cls._instances[cls]
def flatten_dict(d: Dict[str, Any], parent_key: str = "", sep: str = "_") -> Dict[str, Any]:
items = []
for k, v in d.items():
new_key = parent_key + sep + k if parent_key else k
if isinstance(v, dict):
items.extend(flatten_dict(v, new_key, sep=sep).items())
else:
items.append((new_key, v))
return dict(items)
|