问题
I would like to choose a value from this optgroup which should then give me a dropdown of links.
<div class="searchbar">
<select id="q" multiple="" tabindex="-1" class="select2-hidden-accessible" aria-hidden="true">
<option></option>
<option class="q-all-text" value="al:all">Search all text</option>
<optgroup label="Business Type">
<option value="bt:Buyer">Buyer</option>
<option value="bt:Farmer/Rancher">Farmer/Rancher</option>
<option value="bt:Farmers Market">Farmers Market</option>
<option value="bt:Fishery">Fishery</option>
<option value="bt:Food Bank">Food Bank</option>
</optgroup>
Here is my code so far:
driver = webdriver.Chrome('/path/to/chromedriver')
driver.get("https://foodmarketmaker.com/main/mmsearch")
iframe = driver.find_element_by_tag_name("iframe")
driver.switch_to.frame(iframe)
select = Select(driver.find_element_by_class_name("select2-hidden- accessible"))
select.select_by_value("bt:Farmer/Rancher")
links = driver.find_elements_by_tag_name('a')
print(links)
for link in links:
print(link.get_attribute('href'))
I either get an exception that the element does not exist, or when I access by index, i get an ElementNotVisibleException due to the aria-hidden attribute being true. Is there any way around this?
回答1:
select is not the node that you need to handle as it's not visible.
Try below code to get required output:
from selenium import webdriver as web
from selenium.webdriver.support.ui import WebDriverWait as wait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By
driver = web.Chrome('/path/to/chromedriver')
driver.get("https://foodmarketmaker.com/main/mmsearch")
iframe = driver.find_element_by_tag_name("iframe")
driver.switch_to.frame(iframe)
wait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, '//section[@id="search-right"]//input[@placeholder="start typing to search"]'))).click()
wait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, '//li[.="Bass"]'))).click()
links = wait(driver, 10).until(EC.presence_of_all_elements_located((By.XPATH, '//section[@id="search-results"]//a[.//*[name()="svg"]]')))
for link in links:
print(link.get_attribute('href'))
P.S. You need to replace text value of li node in '//li[.="Bass"]' XPath with required option
回答2:
As per the HTML you have shared to print all the options you have to induce WebDriverWait to switch to the desired frame, then click on the Search Box for the options to be visible as follows :
Code Block :
from selenium import webdriver from selenium.webdriver.chrome.options import Options from selenium.webdriver.support.ui import WebDriverWait from selenium.webdriver.support import expected_conditions as EC from selenium.webdriver.common.by import By options = Options() options.add_argument("start-maximized") options.add_argument("disable-infobars") options.add_argument("--disable-extensions") driver = webdriver.Chrome(chrome_options=options, executable_path=r'C:\Utility\BrowserDrivers\chromedriver.exe') driver.get("https://foodmarketmaker.com/main/mmsearch") WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH,"//iframe[@src='https://search.foodmarketmaker.com']"))) WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//div[@class='searchbar']//input[@class='select2-search__field' and @placeholder='start typing to search']"))).click() links = driver.find_elements_by_xpath("//li[@class='select2-results__option' and @aria-label='Business Type']/strong//following::ul[1]//li") for link in links: print(link.get_attribute('innerHTML'))Console Output :
Buyer Buyer: Baked Goods Buyer: Beverages Buyer: Dairy Buyer: Fish & Seafood Buyer: Fruit & Nuts Buyer: Grains & OilSeed Buyer: Herbs Buyer: Meat & Poultry Buyer: Miscellaneous Buyer: Specialty Products Buyer: Sugar/Confectionary & Snacks Buyer: Vegetables Eating & Drinking Place Eating & Drinking Place: Cafeteria & Buffet Eating & Drinking Place: Caterer Eating & Drinking Place: Drinking Place Eating & Drinking Place: Food Service Contractor Eating & Drinking Place: Mobile Food Service Eating & Drinking Place: Restaurant Eating & Drinking Place: Snack & Nonalcoholic Beverage Bar Farmer/Rancher Farmer/Rancher: Dairy Farmer/Rancher: Forage Farmer/Rancher: Fruits & Nuts Farmer/Rancher: Grains Farmer/Rancher: Herbs Farmer/Rancher: Livestock Production (Beef Cattle) Farmer/Rancher: Meat & Poultry Farmer/Rancher: Specialty Products Farmer/Rancher: Vegetables Farmers Market Fishery Fishery: Fish/Shellfish/Seafood Food Bank Food Bank: Food Bank Food Hub Food Retailer Food Retailer: Baked Goods Store Food Retailer: Beer, Wine & Liquor Store Food Retailer: Candy, Nut & Confectionery Food Retailer: Fish Market Food Retailer: Fruit & Vegetable Market Food Retailer: Grocery/Convenience Store Food Retailer: Health Supplement Store Food Retailer: Meat & Poultry Market Food Retailer: Other Direct Selling Establishments Food Retailer: Other Specialty Food Store General Member Processor/Packing Shed Processor/Packing Shed: Animal Food Manufacturing Processor/Packing Shed: Bakery Products Processor/Packing Shed: Beverages Processor/Packing Shed: Dairy Products Processor/Packing Shed: Fish/Shellfish/Seafood Products Processor/Packing Shed: Fruit & Vegetable Products Processor/Packing Shed: Grain & Oilseed Milling Processor/Packing Shed: Meat & Poultry Products Processor/Packing Shed: Miscellaneous Processor/Packing Shed: Packing Shed Processor/Packing Shed: Sugar and Confectionery Products Tourism Tourism: Agritourism Tourism: Fishing Charter Tourism: Hunting Wholesaler Wholesaler: Beer, Wine & Alcoholic Beverages Wholesaler: Confectionery & Snacks Wholesaler: Dairy Products Wholesaler: Farm Products Wholesaler: Fish/Shellfish/Seafood Wholesaler: Fruit & Vegetable Wholesaler: General Grocery Wholesaler: Meat & Poultry Wholesaler: Other Grocery Wholesaler: Packaged Frozen Food Winery Winery: Blends or Generic Wine Winery: Fortified Wine Winery: Fruit Wine Winery: Other Wine Products Winery: Red Wine Winery: Sparkling Wine Winery: White Wine
来源：https://stackoverflow.com/questions/50218124/selecting-an-option-from-an-optgroup-with-selenium-and-python