category_element = wait.until(EC.element_to_be_clickable((By.CLASS_NAME, category.get_attribute('class'))))

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


def scrape_item_links(self, is_first = True):
    marketplace_button = self.driver.find_element_by_xpath('//div[contains(text(), "Marketplace")]')
    marketplace_button.click()
    #create a list of each section and loop through list
    sections = [self.driver.find_element_by_xpath('//div[contains(text(), "Home & Garden")]'),
                self.driver.find_element_by_xpath('//div[contains(text(), "Entertainment")]'),
                self.driver.find_element_by_xpath('//div[contains(text(), "Clothing & Accessories")]'),
                self.driver.find_element_by_xpath('//div[contains(text(), "Family")]'),
                self.driver.find_element_by_xpath('//div[contains(text(), "Electronics")]'),
                self.driver.find_element_by_xpath('//div[contains(text(), "Hobbies")]'),
                self.driver.find_element_by_xpath('//div[contains(text(), "Vehicles & Bicycles")]')]

    for category in sections:
        if is_first:
            category.click()
            is_first = False
        else:
            pass

        #try:
        for _ in range(10):
            self.driver.execute_script("window.scrollTo(0, document.body.scrollHeight);")
            sleep(1.5)

        full_items_list = self.driver.find_elements_by_xpath("//a[@class='_1oem']")
        if self.used_item_links == 0: #False or None?
            self.used_item_links = [item.get_attribute('href') for item in full_items_list]
        else:
                #append or extend or add?
            self.used_item_links.extend([item.get_attribute('href') for item in full_items_list])
        print(self.used_item_links)

        wait = WebDriverWait(self.driver, 10)
        category_element = wait.until(EC.element_to_be_clickable((By.CLASS_NAME, category.get_attribute('class'))))
        category_element.click()