elem.send_keys('seleniumhq' + Keys.RETURN)
time.sleep(0.2)
try:
    browser.find_element_by_xpath(
        "//a[contains(@href,'http://seleniumhq.org')]")
except NoSuchElementException:
    assert 0, "can't find seleniumhq"
browser.close()
Embed a web browser in a Python program