Find element text using xpath in selenium-python NOt Working - python-2.7

Question

html looks like thisI have written this code to scrape all courses from a url. For this I am trying to get the count of courses using xpath. But it does not give me anything. Where I am doing wrong?
import requests
from bs4 import BeautifulSoup
from selenium import webdriver
from time import sleep
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.ui import WebDriverWait`
class FinalProject:
def __init__(self,url= "https://www.class-central.com/subject/data-science"):`
self.url = url
base_url = 'https://www.class-central.com'
self.error_flag = False
self.driver = webdriver.Chrome(<path to chromedriver>)
self.driver.get(self.url)
sleep(2)
self.count_course_and_scroll()
def count_course_and_scroll(self):
wait = WebDriverWait(self.driver, 30);
ele = wait.until(EC.presence_of_element_located((By.PARTIAL_LINK_TEXT, 'Not right now, thanks.')));
ele.click()
print "----------------------POP UP CLOSED---------------------"
total_courses = self.driver.find_element_by_xpath("//span[#id='number-of-courses']")
print total_courses
print total_courses.text
self.driver.close()
fp = FinalProject()

Answer 1

If text doesn't work you can try get_attribute
print total_courses.get_attribute('text')
#or
print total_courses.get_attribute('innerHTML')

Answer 2

ele = wait.until(EC.presence_of_element_located((By.PARTIAL_LINK_TEXT, 'Not right now, thanks.')));
ele.click()
print "----------------------POP UP CLOSED---------------------"
total_courses = self.driver.find_element_by_xpath("//span[#id='number-of-courses']")
In that piece of code, I suspicious 2 things:
Does the popup always appear?
Does the text of number-of-coursesshow in time?
If you are not sure about 1., I would recommend to put it in a try catch
And about 2. - wait until some text appears on that element
try:
ele = wait.until(EC.presence_of_element_located((By.PARTIAL_LINK_TEXT, 'Not right now, thanks.')));
ele.click()
finally:
total_courses = wait.until(EC.presence_of_element_located(By.XPATH, "//span[#id='number-of-courses' and text() != '']")
print total_courses.text