Script2

allIframesLen = driver.find_elements_by_id('iframe')
audioBtnFound = False
audioBtnIndex = -1

for index in range(len(allIframesLen)):
    driver.switch_to.default_content()
    iframe = driver.find_elements_by_tag_name('iframe')[index]
    driver.switch_to.frame(iframe)
    driver.implicitly_wait(delayTime)