chromedriver can't click when running a script, but can in shell - python-2.7

Question

I have a problem in general with clicking in Chromedriver when the code is being ran by Python. This code is used in the script:
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.ui import WebDriverWait
driver.get("https://www.marktplaats.nl/")
cook_button = WebDriverWait(driver, 15).until(EC.element_to_be_clickable((By.XPATH, "//form[#method='post']/input[#type='submit']"))).click()
It just times out giving "NoSuchElementException". But if I put those lines manually in the Shell, it clicks like normal. For what it's worth, I'm using the latest 2.40 Chromedriver and Chrome v67. Running it headless doesn't make any difference.
EDIT
The program actually breaks after on the third command when it tries to find an element that doesn't exist because the click wasn't completed
driver.get(master_link) # get the first page
wait_by_class("search-results-table")
page_2_el = driver.find_element_by_xpath("//span[#id='pagination-pages']/a[contains(#data-ga-track-event, 'gination')]")
So, page_2_el command gives this exception, but only because the click before wasn't completed successfully to remove the warning about cookies.And I'm sure the xpath search is good because it runs with geckodriver in Firefox, but won't do it here with Chromedriver.
EDIT2 See a video of the bug here https://streamable.com/tv7w4 Notice how it flinches a bit, see when it writes on the console "before click" and "after click"
SOLUTION
Replaced
cook_button = WebDriverWait(driver, 15).until(EC.element_to_be_clickable((By.XPATH, "//form[#method='post']/input[#type='submit']"))).click()
With
N_click_attempts = 0
while 1:
if N_click_attempts == 10:
print "Something is wrong. "
break
print "Try to click."
N_click_attempts = N_click_attempts+1
try:
cook_button = WebDriverWait(driver, 15).until(EC.element_to_be_clickable((By.XPATH, "//form[#method='post']/input[#type='submit']"))).click()
time.sleep(2.0)
except:
time.sleep(2.0)
break
It seems that the click is now completed. I have other clicks in the script and they work fine with element.click(), this one was problematic for some reason.

Answer 1

Your path is correct, but I would suggest a smaller one:
//form/input[2]
And about NoSuchElementException - you can try to add a pause, to wait until element loads and becomes 'visible' for selenium. Like this:
import time
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.ui import WebDriverWait
driver.get("https://www.marktplaats.nl/")
cook_button = WebDriverWait(driver, 15).until(EC.element_to_be_clickable((By.XPATH, "//form[#method='post']/input[#type='submit']"))).click()
time.sleep(5) # wait 5 seconds until DOM will reload
According edit in the question I would suggest to add time.sleep(5) after clicking on the button. And for the same reason, because after clicking the whole DOM reloads and selenium should wait until reload will be done. On my computer it takes about 2-3 seconds to full reload the DOM.