I am trying to click on an element and send keys to it but i get cannot focus on element error. I tried using action chains but was not working.
I am able to click the element but when i send keys it throws "cannot focus on element error"
D = C.find_element_by_xpath('//*[@id="pcsTableId"]/tbody/tr[9]/td[4]')
>>> D.click()
>>> D.send_keys("4556741")
WebDriverException: Message: unknown error: cannot focus element
(Session info: chrome=59.0.3071.115)