#!/usr/bin/env python

import os

from selenium import webdriver
from selenium.webdriver.firefox.options import Options
from selenium.webdriver.support.ui import Select
from selenium.webdriver.common.keys import Keys

download_folder = os.path.join(os.environ.get("HOME"), "Downloads")

options = Options()
options.add_argument("--headless")

fp = webdriver.FirefoxProfile()
fp.set_preference("browser.download.folderList", 2)
fp.set_preference("browser.helperApps.alwaysAsk.force", False)
fp.set_preference("browser.download.manager.showWhenStarting",False)
fp.set_preference("browser.download.dir", download_folder)
fp.set_preference("browser.download.downloadDir", download_folder)
fp.set_preference("browser.download.defaultFolder", download_folder)
fp.set_preference("browser.download.forbid_open_with", True)
fp.set_preference("browser.helperApps.neverAsk.saveToDisk",
                  "application/text, application/csv, text/csv, application/vnd.ms-excel")

driver = webdriver.Firefox(firefox_profile=fp, options=options)
driver.get(SOME_URL)

segment = driver.find_element_by_id(some_dropdown_element_id)
select_obj = Select(segment)
select_obj.select_by_visible_text(dropdown_entry_value)

segment = driver.find_element_by_id(some_input_element_id)
segment.send_keys(input_text + Keys.ENTER)

driver.execute_script("document.getElementById('some_element_id').removeAttribute('some_attribute')")