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import math
import time
from functools import wraps
from typing import Any, Callable, Optional
INF = float(math.inf)
def info_exponential_backoff(
retries: int = 5, base_wait_time: int = 1
) -> Callable[[Callable[..., str]], Callable[..., str]]:
"""
Decorator for applying exponential backoff to a function.
:param retries: Maximum number of retries.
:param base_wait_time: Base wait time in seconds for the exponential backoff.
"""
def decorator(func: Callable[..., str]) -> Callable[..., str]:
@wraps(func)
def wrapper(*args: Any, **kwargs: Any) -> str:
attempts = 0
while attempts < retries:
try:
return func(*args, **kwargs)
except Exception as e:
wait_time = base_wait_time * (2**attempts)
print(f"Attempt {attempts + 1} failed: {e}")
print(f"Waiting {wait_time} seconds before retrying...")
time.sleep(wait_time)
attempts += 1
print(
f"Failed to execute '{func.__name__}' after {retries} retries."
)
return "FAILED"
return wrapper
return decorator
def score_exponential_backoff(
retries: int = 5, base_wait_time: int = 1
) -> Callable[[Callable[..., float]], Callable[..., float]]:
"""
Decorator for applying exponential backoff to a function.
:param retries: Maximum number of retries.
:param base_wait_time: Base wait time in seconds for the exponential backoff.
"""
def decorator(func: Callable[..., float]) -> Callable[..., float]:
@wraps(func)
def wrapper(*args: Any, **kwargs: Any) -> float:
attempts = 0
while attempts < retries:
try:
return func(*args, **kwargs)
except Exception as e:
wait_time = base_wait_time * (2**attempts)
print(f"Attempt {attempts + 1} failed: {e}")
print(f"Waiting {wait_time} seconds before retrying...")
time.sleep(wait_time)
attempts += 1
print(
f"Failed to execute '{func.__name__}' after {retries} retries."
)
return -INF
return wrapper
return decorator
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