# coding:utf-8
from selenium import webdriver
from selenium.common.exceptions import TimeoutException
from pyquery import PyQuery as pq
import sys
import glob
import os
import time
import urllib

from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By

from selenium.webdriver.chrome.options import Options


# https://stackoverflow.com/questions/12093940/reading-files-in-a-particular-order-in-python
import re
numbers = re.compile(r'(\d+)')
def numericalSort(value):
    parts = numbers.split(value)
    parts[1::2] = map(int, parts[1::2])
    return parts


# https://stackoverflow.com/questions/43813170/using-selenium-webdriver-to-wait-the-attribute-of-element-to-change-value
class wait_for_the_attribute_value(object):
    def __init__(self, locator, attribute, value):
        self.locator = locator
        self.attribute = attribute
        self.value = value

    def __call__(self, driver):
        try:
            element_attribute = EC._find_element(driver, self.locator).get_attribute(self.attribute)
            return (element_attribute != self.value) 
        except StaleElementReferenceException:
            return False

if __name__ == '__main__':
    args = sys.argv
    if (len(args) < 2):
        quit('required directory path')

    original_dir = os.path.abspath(args[1])
    color_dir = original_dir + '_color'
    try:
        os.mkdir(color_dir)
    except OSError:
        pass

    try:
        # driver = webdriver.PhantomJS()
        options = Options()
        # options.binary_location = '' /usr/bin/Pas nécessaire car j'ai déplacé le binaire vers
        options.add_argument('--headless')
        driver = webdriver.Chrome(chrome_options=options)
        driver.get('https://paintschainer.preferred.tech/index_ja.html')

        #Je ne pense pas que ce soit nécessaire, mais cela interfère avec la capture d'écran pour vérifier l'opération, alors fermez l'écran du contrat
        close = driver.find_element_by_css_selector('.close')
        close.click()

        for path in sorted(glob.glob(original_dir + '/*'), key=numericalSort):
            dummy, ext = os.path.splitext(path)
            #Mesures PNG transparentes qui ne prennent pas en charge TODO Majuscules et minuscules?
            if (ext != '.jpg' and ext !=  '.jpeg' and ext !=  '.png'):
                continue

            driver.execute_script("document.getElementById('load_line_file').style.display = '';")
            elm = driver.find_element_by_id("load_line_file")
            elm.send_keys(os.path.abspath( path ))
            src = driver.find_element_by_id("output").get_attribute('src')
            WebDriverWait(driver, 60 * 5).until(wait_for_the_attribute_value((By.ID, 'output'), 'src', src))

            output = driver.find_element_by_id("output").get_attribute('src')
            urllib.urlretrieve(output, color_dir + '/' + os.path.basename(path))

            time.sleep(10)

    except TimeoutException as e:
        print(e)
        driver.save_screenshot('./timeout.png')
    except Exception as e:
        print(e)
        driver.save_screenshot('./exception.png')
    finally:
        driver.quit()

Je n'arrive toujours pas à écrire proprement ...

</ i> Impressions