Unable to locate the element while using selenium-webdriver
Most of the times im using By.xpath and it works specially if you use contains in your xpath. For example : //*[contains(text(),'ABC')]
This will look for all the elements that contains string 'ABC'
In your case you can replace ABC with Delete Log File
I am very much new to selenium WebDriver and I am trying to automate a page which has a button named "Delete Log File". Using FireBug I got to know that, the HTML is described as 

and also the css selector is defined as "#DeleteLogButton" using firepath
hence I used 
browser.find_element_by_css_selector("#DeleteLogButton").click() in webdriver to click on that button but its now working and also, I tried, 
browser.find_element_by_id("DeleteLogButton").click() to click on that button. Even this did not find the solution for my problem...
Please help me out in resolving the issue.