I installed VS Code, Python and Python extensions In VS Code, when I don’t use def functions my code works as expected in the Explorer & Debug and Run areas and messages get printed as expected to terminal. As expected, the code doesn’t appear in the Testing area to run. code without def from selenium import webdriver from selenium.webdriver.common.by import By from selenium.webdriver.common.keys import Keys from selenium.webdriver.chrome.options import Options chrome_options = Options() chrome_options.add_argument("--disable-search-engine-choice-screen") driver = webdriver.Chrome(options=chrome_options) driver.implicitly_wait(5) driver.get("https://www.amazon.co.uk/") search = driver.find_element(By.ID,'twotabsearchtextbox') search.send_keys("dress", Keys.ENTER) expected_text = '"dress"' print('Found', expected_text) actual_text = driver.find_element(By.XPATH, "//span[@class='a-color-state a-text-bold']").text assert expected_text == actual_text, f'Error. Expected text: {expected_text}, but actual text: {actual_text}' driver.quit() So, if I add def functions to my code, the code runs in Testing (but I don’t see any of the print outputs listed in the code). code with def from selenium import webdriver from selenium.webdriver.common.by import By from selenium.webdriver.common.keys import Keys from selenium.webdriver.chrome.options import Options def test_amazon_search_dress(): chrome_options = Options() chrome_options.add_argument("--disable-search-engine-choice-screen") driver = webdriver.Chrome(options=chrome_options) driver.implicitly_wait(5) driver.get("https://www.amazon.co.uk/") search = driver.find_element(By.ID,'twotabsearchtextbox') search.send_keys("dress", Keys.ENTER) expected_text = '"dress"' print('Found', expected_text) actual_text = driver.find_element(By.XPATH, "//span[@class='a-color-state a-text-bold']").text assert expected_text == actual_text, f'Error. Expected text: {expected_text}, but actual text: {actual_text}' driver.quit() The only difference between the two code snippets is def test_amazon_search_dress(): The big issue is that code with def doesn’t run for me in the Explorer & Debug and Run, unless I follow the answer to my issue shown here VS Code not accepting Python Methods , which worked, but I noticed from video https://www.youtube.com/watch?v=D2cwvpJSBX4&t=273s @8:33 that when def code runs from Explorer, Debug and Run & Testing and prints messages without the solution suggested in stackoverflow. Is there any advice or help you can give me please as I'm not sure if the issue is VS Code or my code? Note: I completed set-up before watching video, so I didn’t create the .venv (I’m using Global/Microsoft Store) and I didn’t do the discord step. Continue reading...