How To Download File Using Selenium Python?

conftest.py

import unittest
from selenium import webdriver
class Browser(unittest.TestCase):
   def setUp(self):
       PATH = "/Users/macbookair/Desktop/how_download_files_selenium_python/download"
       #Mozilla Firefox
       profile = webdriver.FirefoxProfile()
       profile.set_preference("browser.download.folderList", 2)
       profile.set_preference("browser.download.manager.showWhenStarting", False)
       profile.set_preference("browser.download.dir", PATH)
       profile.set_preference("browser.helperApps.neverAsk.saveToDisk", "application/x-gzip")
       self.driver = webdriver.Firefox(firefox_profile=profile)
       self.driver.get("https://www.lambdatest.com/selenium-playground/")
 
   def tearDown(self):
       self.driver.close()
if __name__ == '__main__':
   unittest.main()