RAM is melting before our eyes, I don’t understand what’s the matter?

Question

Python

After launching the application (and through PyCharm or cmd), after literally 10 minutes, the RAM is completely clogged, the virtual and then the physical memory starts to fill up, I can’t understand where the breakdown is and what’s actually the matter ..

from selenium import webdriver
import unittest

class UntitledTestCase(unittest.TestCase):

    def setUp(self):
        self.driver = webdriver.Firefox('D:\profile')
        self.driver.implicitly_wait(3)

    def test_untitled_test_case(self):
        driver = self.driver
        driver.get("http://site.ru") 
        while True:

            nums = int(1)
            while nums != 16: 
                driver.find_element_by_xpath(u"{}{}{}{}".format("(//img[@alt='Комментарии'])","[",str(nums),"]")).click()
                nums += 1
                try:
                    driver.find_element_by_xpath(u"//img[@alt='Спасибо']").click()
                    driver.back()
                except:
                    driver.back()
            driver.find_element_by_link_text(u"След.").click()



if __name__ == "__main__":
    unittest.main()

Answer 1

while True:

What result did you want?