[py] fix pyflakes errors

Author: AutomatedTester

py/selenium/webdriver/remote/webelement.py

@@ -534,10 +534,10 @@ def send_keys(self, *value):
         # transfer file to another machine only if remote driver is used
         # the same behaviour as for java binding
         if self.parent._is_remote:
-            local_files = list(map(lambda keys_to_send: 
-                self.parent.file_detector.is_local_file(keys_to_send),
-                ''.join(value).split('\n')))
-            if not None in local_files:
+            local_files = list(map(lambda keys_to_send:
+                                   self.parent.file_detector.is_local_file(keys_to_send),
+                                   ''.join(value).split('\n')))
+            if None not in local_files:
                 remote_files = []
                 for file in local_files:
                     remote_files.append(self._upload(file))

py/test/selenium/webdriver/firefox/ff_profile_tests.py

@@ -30,7 +30,6 @@
     unicode = str
 
 from selenium.webdriver import Firefox, FirefoxProfile
-from selenium.webdriver.common.by import By
 
 
 def test_that_we_can_accept_a_profile(capabilities, webserver):