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locate an a element and click on it in selenium pyhton

I have this page and I want to click on the a element that sends an email(the one that is highlighted in the screenshot below
and I have tried to find this element using By.XPATH
email = driver.find_element(By.XPATH, "//a[contains(#class, 'email-old-32')]").click()
and By.CLASS_NAME
email = driver.find_element(By.CLASS_NAME, 'email-old-32').click()
and in both situations i'm getting an error no such element, does anyone know what am I doing wrong?

There are several possible thing that may cause this:
You need to wait for element to be loaded and to become clickable. WebDriverWait expected_conditions can be used for that.
If this is your case instead of email = driver.find_element(By.XPATH, "//a[contains(#class, 'email-old-32')]").click() try this:
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
wait = WebDriverWait(driver, 20)
wait.until(EC.element_to_be_clickable((By.XPATH, "//a[contains(#class, 'email-old-32')]"))).click()
The element class attribute value can be dynamic. Make sure it is not changing. In case it does - you need to find another, stable locator for that element.
The element can be inside iframe. In this case you will need to switch into the iframe.
Possibly you opened a new tab where the goal element is presented but forget to switch to a new tab.

Unable to Populate Search Field in Python Selenium

I am trying to search www.oddschecker.com using Python and Selenium (chromedriver) but am struggling to populate the search field with the search term.
The code below clicks the magnifying glass ok but the send_keys statement does not populate the expanded search box.
Can anyone see the issue?
driver.find_element_by_xpath('//*[#id="top-menu"]/li[8]/ul/li[1]/span/span').click()
sleep(5)
driver.find_element_by_xpath('/html/body/div[1]/header/div[1]/div/div[1]/div/ul/li[8]/ul/li[1]/div/div/div/form/fieldset/input').send_keys('Bicep')

xpath is brittle, please use relative xpath. see below.
Use explicit waits.
Close modal pop up may appear sometime, may not appear sometime so better to wrap them inside try and except block.
Code :
driver = webdriver.Chrome(driver_path)
driver.maximize_window()
#driver.implicitly_wait(30)
wait = WebDriverWait(driver, 30)
driver.get("http://www.oddschecker.com/")
try:
wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, "span.js-close-class"))).click()
print('Clicked on close button if it appears')
except:
pass
wait.until(EC.element_to_be_clickable((By.XPATH, "//span[starts-with(#data-ng-click,'NavSearchCtrl')]"))).click()
search = wait.until(EC.visibility_of_element_located((By.ID, "search-input")))
search.send_keys('Bicep', Keys.RETURN)
Imports :
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC

How to select a list in Selenium?

I'm trying to enter an address then they propose me some addresses and I had no idea how to select the first option they give me.
If you want to try, at the second step on this link: https://www.sneakql.com/en-GB/launch/culturekings/womens-air-jordan-1-high-og-court-purple-au/register
adresse = chrome.find_element_by_id('address-autocomplete')
adresse.send_keys(row['Adresse']) #Adress from a file
time.sleep(5)
country = chrome.find_element_by_xpath('//li[#id="suggestion_0"]').click();
Inspect element:

Try clicking on the first option with this:
driver.find_element_by_xpath('//li[#id="suggestion_0"]')
UPD
The element you trying to click is out of the view. You have to do the following:
from selenium.webdriver.common.action_chains import ActionChains
suggestion_0 = driver.find_element_by_xpath('//li[#id="suggestion_0"]')
actions = ActionChains(driver)
actions.move_to_element(suggestion_0).perform()
suggestion_0.click()

You should click this field and wait for the first option to become clickable.
I've wrote some code to test if my solution works and it works in all cases for me:
from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By
url = 'https://www.sneakql.com/en-GB/launch/culturekings/womens-air-jordan-1-high-og-court-purple-au/register'
driver = webdriver.Chrome(executable_path='/snap/bin/chromium.chromedriver')
driver.get(url)
wait = WebDriverWait(driver, 15)
wait.until(EC.element_to_be_clickable((By.XPATH, "//span[contains(text(),'AGREE')]"))).click() # ACCEPT COOKIES
# Making inputs of the first page
wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, "#firstName"))).send_keys("test")
wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, "#lastName"))).send_keys("Last name")
wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, "#preferredName"))).send_keys("Mr. President")
wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, "#email"))).send_keys("mr.president#gmail.com")
driver.find_element_by_css_selector("#password").send_keys("11111111")
driver.find_element_by_css_selector("#phone").send_keys("222334413")
driver.find_element_by_css_selector("#birthdate").send_keys("2000-06-11")
wait.until(EC.element_to_be_clickable((By.XPATH, "//span[contains(text(),'Next')]"))).click()
# Second page and answer to your main question
wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, "#address-autocomplete"))).send_keys("street")
wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, "#suggestion_0"))).click()
Please note, that not all explicit waits are required and I used css selectors because I am not sure that all elements ids are correct.
My output:

How to find the Xpath of the element as per the html through Selenium and Python

Tried something like this in python unable I want to click on cross using Selenium.
driver.find_element_by_xpath("//span[contains(#onclick, 'parent.$WZRK_WR.closeIframe('60005','intentPreview');')]").click()

As per the HTML you have shared to click on the element depicted as X, first you need to induce WebDriverWait while switching to the <iframe> and again induce WebDriverWait for the desired element to be clickable and you can use the following solution:
WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH,"//iframe[#id='wiz-iframe-intent']")))
WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, "//div[#class='CT_Interstitial']//span[#class='CT_InterstitialClose']"))).click()
Note : You have to add the following imports :
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC

Open below URL and Click on Add to Chrome button.
Xpath Helper- https://chrome.google.com/webstore/detail/xpath-helper/hgimnogjllphhhkhlmebbmlgjoejdpjl?hl=en
Once plugin added to Chrome. Open your application/webpage and press SHIFT+CTRL+X. Black window will appear on top then you can play with xpath.
If xpath is invalid- then you will get xpath error and if no matches found then it will display NULL.
Note- To check element attribute still you can use F12 that is nothing but default inspect element for all browser then check attribute and create your own xpath and try.
Xpath Syntax
// tagname[#attribute-name=’value1′] and if you are not sure about tag name then no worry you can try with * also
//*[#attribute-name='value1']

You are dealing with an iframe. Follow below steps :
You'll need to switch control to iframe.
Then perform your action (in this case 'Click close').
Switch the control back to default frame.

You can try with this css_selector :
div.CT_InterstitialContents+span.CT_InterstitialClose[onclick]
Xpath would be :
//div[#class='CT_InterstitialContents']/following-sibling::span[#class='CT_InterstitialClose' and onclick]

Try to use this xPath:
//div[#id = 'contentDiv']/div/div/span[#class = 'CT_InterstitialClose']
Code:
close_btn = WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, "//div[#id = 'contentDiv']/div/div/span[#class = 'CT_InterstitialClose']")))
close_btn.click()
Imports:
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.wait import WebDriverWait
from selenium.webdriver.common.by import By
Explanation:
WebDriverWait is used to wait until element will be clickable, and only then clicks on it. In this example WebDriverWait will wait at least 10 seconds until element will be clickable.
PS: as I see in the screenshot your element is probably in iframe. That means you have to switch to this iframe first, to be able to interact with the elements in it. The code sample for it would be like this:
WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH, "XPATH_TO_FRAME")))
# do stuff
close_btn = WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, "//div[#id = 'contentDiv']/div/div/span[#class = 'CT_InterstitialClose']")))
close_btn.click()
# switch back to default content
driver.switch_to.default_content()

You can write xpath using class name of span. Please refer an example below.
//span[#class='amountCharged']

Selenium can't locate the element, a search button using xpath

I can't find a solution how this element cannot be found by using a selenium xpath. Other button on other websites always working just fine. Usually what I would normally do is, just open up a page and inspect the element and I would right click it and copy the xpath. Done.
But this website, www.gsc.com.my (a malaysian cinema booking site). Seems not able to find the button. Is it protected by another security layer?
Lets see the code below,
from selenium import webdriver
chromedriver_path = './chromedriver.exe'
driver = webdriver.Chrome(chromedriver_path)
driver.get('https://www.gsc.com.my')
driver.find_element_by_xpath("""//*[#id="btnNext"]""").click()
The error Message:
no such element: Unable to locate element: {"method":"xpath","selector":"//*[#id="btnNext"]"}

Button is located inside an iframe, so you need to switch to that frame before clicking the button:
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait as wait
from selenium.webdriver.support import expected_conditions as EC
driver.switch_to.frame('getQuickFilter_ctrl_ifrBox')
wait(driver, 10).until(EC.element_to_be_clickable((By.ID, "btnNext"))).click()

Because there are two elements with id btnNext, you'll have to specify which of them using an index, 1 for the first, 2 for the second.
driver.find_element_by_xpath("""//*[#id="btnNext"][1]""").click()

You can try with this css selector :
div.container input#btnNext
Note that you will need to switch to iframe first , cause the check button is in a iframe.
For switching to iframe :
driver.switch_to.frame(driver.find_element_by_id("getQuickFilter_ctrl_ifrBox"))
and for clicking on check Button
wait = WebDriverWait(driver, 10)
check_button = wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, "div.container input#btnNext")))
check_button.click()