selenium click a span tag

[metulburr]

I am having trouble clicking a span tag that is a button, but not using button html tag at all.

Most example i see are doing something like

find_tag('tag_name').Click()

but i keep getting errors such as

Error:
Traceback (most recent call last):
  File "test1.py", line 73, in <module>
    clip_all_btns(browser)
  File "test1.py", line 63, in clip_all_btns
    element.Click()
AttributeError: 'WebElement' object has no attribute 'Click'

full code. Specifically from the function on line 51 clip_all_btns. In which it loops all the <span class add-text> code for each button

#!/usr/bin/python3 env

from selenium import webdriver
import time
import os

def setup():
    '''
    setup webdriver and create browser
    '''
    chromedriver = "/home/metulburr/chromedriver"
    os.environ["webdriver.chrome.driver"] = chromedriver
    browser = webdriver.Chrome(chromedriver)
    return browser

def login(browser):
    '''
    login to account
    '''
    browser.get("https://dg.coupons.com/signin/") 
    time.sleep(1) 
    username = browser.find_element_by_id("email")
    password = browser.find_element_by_id("password")
    username.send_keys("MY_EMAIL")
    password.send_keys("MY_PASS")
    login_attempt = browser.find_element_by_xpath("//*[@type='submit']")
    login_attempt.submit()
    
def get_btns(browser):
    '''
    return a list of buttons from span tag class name to add coupon
    '''
    return browser.find_elements_by_class_name('add-text')

def make_all_btns_visable(browser):
    '''
    show all buttons by scrolling down
    '''
    count = 0
    for _ in range(100):
        browser.execute_script("window.scrollTo(0, document.body.scrollHeight);")
        time.sleep(1)
        #browser.FindElement(By.XPath("//div[@class='pod ci-grid recommended desktop ']//div[@class='media']//div[@class='media-body']//div[@class='badge']//span[@class='add-text']")).Click()
        clip_btns = get_btns(browser)
        print('Scrolling {} buttons into view'.format(len(clip_btns)))
        if count >= len(clip_btns):
            break
        else:
            count = len(clip_btns)
            
def clip_all_btns(browser):
    '''
    clip all coupons by clicking all add-text span tag
    '''
    clip_btns = get_btns(browser)
    for btn in clip_btns:
        element = browser.find_element_by_tag_name("span")
        print(element)
        print(element.text)
        element.Click()

browser = setup()
login(browser)

time.sleep(3) 
browser.get('https://dg.coupons.com/coupons/')
time.sleep(3)

make_all_btns_visable(browser)
clip_all_btns(browser)
    


with open('output.txt','w') as f:
    f.write(browser.page_source)
#print(browser.page_source)

where each button section consists of:

         <div class="pod ci-grid recommended desktop " data-agent="desktop" data-code="X508365" data-omscid="19635134" data-podid="05b5dd4b-c143-4ec3-8031-4e79ebeecb98" data-source="">
          <div class="pod-icon Dollar General ">
          </div>
          <div class="hover">
           <div class="sprite-pod circle">
            <p class="click-text">
             Add to card
            </p>
            <p class="click-text-sec">
            </p>
           </div>
          </div>
          <div class="media">
           <div class="media-object pull-left">
            <img alt="" src="//cdn.cpnscdn.com/static.coupons.com/ext/bussys/cpa/pod/89/247/389247_9c7d2c59-368a-4203-92cd-0c99622a439e.gif"/>
            <div class="show-detail">
             Show Details
             <span class="caret">
             </span>
            </div>
           </div>
           <div class="media-body">
            <p class="pod_summary">
             <span class="eboxtop-img">
             </span>
             Save $5.00
            </p>
            <p class="pod_brand">
             Dollar General
            </p>
            <p class="pod_description">
             when you make a purchase of $30 or more (pre-tax) at a Dollar General Location 12/3/16
            </p>
            <p aria-label="expiration on 12/03/16" class="pod_expiry">
             Exp: 12/03/16
            </p>
            <div class="badge">
             <span aria-label="activated coupon" class="activate-text">
              ✓
             </span>
             <span aria-label="click to add coupon" class="add-text">
              <span>
               Add
              </span>
              +
             </span>
            </div>
           </div>
          </div>
          <div class="sprite-pod clipped-container">
           <div class="clipped-view">
            <span class="box clip-box clip-action">
             <i>
              ✓
             </i>
             Added
            </span>
            <span class="box info pull-right">
             <i>
              ⇱
             </i>
             Info
            </span>
           </div>
          </div>
          <div class="detail" style="display:none">
           <div>
            <strong class="sub">
             Details:
            </strong>
            $30 or more (pretax) calculated after all other Dollar general discounts. Limit one per customer.  We reserve the right to limit use to normal retail purchases. No cash value. Coupon excludes: gift cards, phone cards, prepaid financial cards, prepaid wireless handsets, Rug Doctor rentals, propane, e-cigarettes, tobacco and alcoholic beverages.
           </div>
          </div>
         </div>

each button itself is:

            <span aria-label="click to add coupon" class="add-text">
             <span>
              Add
             </span>
             +
            </span>

I tried clicking both span tags but getting the same result.

the entire html of one logged in of the page where all the buttons are
http://codepad.org/b0mi7mYG

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