Selecting an option from an optgroup with selenium

2019-08-01 04:07发布

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 &amp; Seafood
    Buyer: Fruit &amp; Nuts
    Buyer: Grains &amp; OilSeed
    Buyer: Herbs
    Buyer: Meat &amp; Poultry
    Buyer: Miscellaneous
    Buyer: Specialty Products
    Buyer: Sugar/Confectionary &amp; Snacks
    Buyer: Vegetables
    Eating &amp; Drinking Place
    Eating &amp; Drinking Place: Cafeteria &amp; Buffet
    Eating &amp; Drinking Place: Caterer
    Eating &amp; Drinking Place: Drinking Place
    Eating &amp; Drinking Place: Food Service Contractor
    Eating &amp; Drinking Place: Mobile Food Service
    Eating &amp; Drinking Place: Restaurant
    Eating &amp; Drinking Place: Snack &amp; Nonalcoholic Beverage Bar
    Farmer/Rancher
    Farmer/Rancher: Dairy
    Farmer/Rancher: Forage
    Farmer/Rancher: Fruits &amp; Nuts
    Farmer/Rancher: Grains
    Farmer/Rancher: Herbs
    Farmer/Rancher: Livestock Production (Beef Cattle)
    Farmer/Rancher: Meat &amp; 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 &amp; Liquor Store
    Food Retailer: Candy, Nut &amp; Confectionery
    Food Retailer: Fish Market
    Food Retailer: Fruit &amp; Vegetable Market
    Food Retailer: Grocery/Convenience Store
    Food Retailer: Health Supplement Store
    Food Retailer: Meat &amp; 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 &amp; Vegetable Products
    Processor/Packing Shed: Grain &amp; Oilseed Milling
    Processor/Packing Shed: Meat &amp; 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 &amp; Alcoholic Beverages
    Wholesaler: Confectionery &amp; Snacks
    Wholesaler: Dairy Products
    Wholesaler: Farm Products
    Wholesaler: Fish/Shellfish/Seafood
    Wholesaler: Fruit &amp; Vegetable
    Wholesaler: General Grocery
    Wholesaler: Meat &amp; 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