Selenium find_element_by_id returns None - selenium-ide

Question

I am using selenium and i have properly installed the selenium module on redhat linux 6.
Below is my script:
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import Select
from selenium.common.exceptions import NoSuchElementException
import unittest, time, re
import zlib
class Sele1(unittest.TestCase):
def setUp(self):
self.driver = webdriver.Firefox()
self.driver.implicitly_wait(30)
self.base_url = "https://bugzilla.example.com/"
self.verificationErrors = []
def test_sele1(self):
driver = self.driver
driver.get(self.base_url + "/")
driver.find_element_by_id("Bugzilla_login").clear()
driver.find_element_by_id("Bugzilla_login").send_keys("username")
driver.find_element_by_id("Bugzilla_password").clear()
driver.find_element_by_id("Bugzilla_password").send_keys("password")
driver.find_element_by_id("log_in").click()
driver.find_element_by_id("quicksearch").clear()
driver.find_element_by_id("quicksearch").send_keys("new bugs is bugzilla tool")
driver.find_element_by_xpath("//input[#value='Find Bugs']").click()
def is_element_present(self, how, what):
try: self.driver.find_element(by=how, value=what)
except NoSuchElementException, e: return False
return True
def tearDown(self):
self.driver.quit()
self.assertEqual([], self.verificationErrors)
if __name__ == "__main__":
unittest.main()
When i am running this script it is showing errors:
ERROR: test_sele1 (main.Sele1)
Traceback (most recent call last):
File "sele1.py", line 19, in test_sele1
driver.find_element_by_id("Bugzilla_login").clear()
AttributeError: 'NoneType' object has no attribute 'clear'
Ran 1 test in 2.018s
FAILED (errors=1)
Plateform: Redhat
Python Version: 2.6
Note: while running the same script in windows7, it is running fine but not running in linux with python2.6
Please help me for this...
Thanks in advance!

Answer 1

Simple: Selenium can't find an element called "Bugzilla_login".
There could be hundreds of reasons this may be happening. I'd start with checking whether you're loading the correct page.