Selenium (python): retrieving both href and text of an anchor

Question

The following working code shows that I am able to retrieve the text from a Webelement but not the href (returns None). What am I doing wrong? The code line that doesn't work as expected is the next to last:

from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.keys import Keys

driver = webdriver.Chrome(
    "/Users/bob/Documents/work/AIFA/scraper/scrape_gu/chromedriver"
)
wait = WebDriverWait(driver, 30)

driver.get("https://farmaci.agenziafarmaco.gov.it/bancadatifarmaci/cerca-farmaco")
readunderstood = driver.find_element_by_id("conf")
readunderstood.click()
accept = WebDriverWait(driver, 10).until(
    EC.element_to_be_clickable((By.XPATH, "/html/body/div[5]/div[3]/div/button"))
)
accept.click()
# end of the initial agreement screens and general preparation
##############################################################
SEARCH_STRING = "AB"  # we can safely assume this does not exist

find_textbox = driver.find_element_by_id("search")
find_textbox.clear()  # after the first search the old value will still be there
find_textbox.send_keys(SEARCH_STRING)
find_textbox.send_keys(Keys.ENTER)
# end of the search for a drug action
##############################################################
drugs_list = wait.until(
    EC.presence_of_all_elements_located(
        (By.XPATH, "//*[@id='ul_farm_results']/li[@style='display: list-item;']",)
    )
)
###### this is the part I don't understand
for drug in drugs_list:
    print(drug.get_attribute("href"))  # this should return a link, but returns None
    print(drug.text)  # this correctly prints 3 lines per drug