How can I get the iframe src?

<iframe allowtransparency="true" class="blogger-iframe-colorize blogger-comment-from-post" frameborder="0" height="66px" id="result" name="result" src="www.rom.net/result/14545" width="100%" style="display: block;" data-resized="true" xpath="1"></iframe>

WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, '#result'))).click()
adres1 = driver.find_element_by_xpath("//a[@id='result']").get_attribute('src')

WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, '//iframe[@id="result"]'))).click()
    driver.switch_to.frame("result")
    l = driver.find_element(By.XPATH, "//iframe[@id='result']")
    print ("Text inside frame: " + l)

WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, '//iframe[@id="result"]'))).click()
driver.switch_to.frame("result")
src = driver.find_element_by_name("result").get_attribute("src")

WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, '//iframe[@id="result"]'))).click()
adres1 = driver.find_element_by_xpath("(//iframe[@id='result'])[1]").get_attribute('src')

WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, '#result'))).click()
adres1 = driver.find_element_by_xpath("//a[@id='result']").get_attribute('href')