feat: add retry utility with exponential backoff

new file mode 100644

@@ -0,0 +1,37 @@

import time

import random

def retry_with_exponential_backoff(func, max_retries=5, base_delay=1, max_delay=32):

    """

    Retries a function with exponential backoff.

    Args:

        func: The function to retry. Must return a truthy value on success or raise an exception on failure.

        max_retries: Maximum number of retries.

        base_delay: Initial delay in seconds.

        max_delay: Maximum delay in seconds.

    """

    retries = 0

    while retries < max_retries:

        try:

            result = func()

            if result:

                return result

        except Exception as e:

            print(f"Attempt {retries + 1} failed: {e}")

        delay = min(base_delay * (2 ** retries) + random.uniform(0, 1), max_delay)

        print(f"Retrying in {delay:.2f} seconds...")

        time.sleep(delay)

        retries += 1

    raise Exception(f"Failed after {max_retries} retries.")

# Example usage:

# def my_unreliable_api_call():

#     if random.random() < 0.7:

#         raise Exception("API Error")

#     return "Success"

# 

# result = retry_with_exponential_backoff(my_unreliable_api_call)

# print(result)