upload file error

gistfile1.txt

---------------------------------------------------------------------------
InvalidArgumentException                  Traceback (most recent call last)
<ipython-input-27-be9256a138d3> in <module>()
      1 for el in driver.find_elements(by='css selector', value='dh-location-origin .btn'):
      2     if re.search("Upload File", el.text):
----> 3         el.find_element_by_css_selector('.multi-files').send_keys('/home/dborin/cusack.png')
      4

/Users/dborin/.python_virtualenvs/env1/lib/python2.7/site-packages/selenium/webdriver/remote/webelement.pyc in send_keys(self, *value)
    477         self._execute(Command.SEND_KEYS_TO_ELEMENT,
    478                       {'text': "".join(keys_to_typing(value)),
--> 479                        'value': keys_to_typing(value)})
    480
    481     # RenderedWebElement Items

/Users/dborin/.python_virtualenvs/env1/lib/python2.7/site-packages/selenium/webdriver/remote/webelement.pyc in _execute(self, command, params)
    626             params = {}
    627         params['id'] = self._id
--> 628         return self._parent.execute(command, params)
    629
    630     def find_element(self, by=By.ID, value=None):

/Users/dborin/.python_virtualenvs/env1/lib/python2.7/site-packages/selenium/webdriver/remote/webdriver.pyc in execute(self, driver_command, params)
    310         response = self.command_executor.execute(driver_command, params)
    311         if response:
--> 312             self.error_handler.check_response(response)
    313             response['value'] = self._unwrap_value(
    314                 response.get('value', None))

/Users/dborin/.python_virtualenvs/env1/lib/python2.7/site-packages/selenium/webdriver/remote/errorhandler.pyc in check_response(self, response)
    240                 alert_text = value['alert'].get('text')
    241             raise exception_class(message, screen, stacktrace, alert_text)
--> 242         raise exception_class(message, screen, stacktrace)
    243
    244     def _value_or_default(self, obj, key, default):

InvalidArgumentException: Message: File not found: /home/dborin/cusack.png