def retry()

in ext.py [0:0]

• 14 lines of code
• 3 McCabe index (conditional complexity)

def retry(howmany):
    def tryFunc(func):
        def f(*args, **kwargs):
            attempts = 0
            while attempts < howmany:
                try:
                    return func(*args, **kwargs)
                except:
                    attempts += 1
                    time.sleep(1.0 * 4.0 ** attempts)
                    if attempts >= howmany:
                        raise

        return f

    return tryFunc