Unable to login to Quora using Selenium webdriver in Python
The problem is that there are multiple inputs with name="email".
You need the one in the "Regular Login" section:
form = driver.find_element_by_class_name('regular_login')username = form.find_element_by_name('email')username.send_keys('my_email')password = form.find_element_by_name('password')password.send_keys('my_password')