Removed duplicated words in in comments and docs.
diff --git a/Lib/test/test_asyncio/test_windows_events.py b/Lib/test/test_asyncio/test_windows_events.py
index 85d9669..b4d9398 100644
--- a/Lib/test/test_asyncio/test_windows_events.py
+++ b/Lib/test/test_asyncio/test_windows_events.py
@@ -105,7 +105,7 @@
 
         _overlapped.SetEvent(event)
 
-        # Wait for for set event;
+        # Wait for set event;
         # result should be True immediately
         fut = self.loop._proactor.wait_for_handle(event, 10)
         start = self.loop.time()
diff --git a/Lib/test/test_docxmlrpc.py b/Lib/test/test_docxmlrpc.py
index cb6366c..06161f2 100644
--- a/Lib/test/test_docxmlrpc.py
+++ b/Lib/test/test_docxmlrpc.py
@@ -10,7 +10,7 @@
 PORT = None
 
 def make_request_and_skipIf(condition, reason):
-    # If we skip the test, we have to make a request because the
+    # If we skip the test, we have to make a request because
     # the server created in setUp blocks expecting one to come in.
     if not condition:
         return lambda func: func
diff --git a/Lib/test/test_xmlrpc.py b/Lib/test/test_xmlrpc.py
index 99b3eda..9194740 100644
--- a/Lib/test/test_xmlrpc.py
+++ b/Lib/test/test_xmlrpc.py
@@ -517,7 +517,7 @@
         return True
 
 def make_request_and_skipIf(condition, reason):
-    # If we skip the test, we have to make a request because the
+    # If we skip the test, we have to make a request because
     # the server created in setUp blocks expecting one to come in.
     if not condition:
         return lambda func: func
diff --git a/Lib/test/test_zipimport_support.py b/Lib/test/test_zipimport_support.py
index 84ba5e0..66c3557 100644
--- a/Lib/test/test_zipimport_support.py
+++ b/Lib/test/test_zipimport_support.py
@@ -57,7 +57,7 @@
     # This used to use the ImportHooksBaseTestCase to restore
     # the state of the import related information
     # in the sys module after each test. However, that restores
-    # *too much* information and breaks for the invocation of
+    # *too much* information and breaks for the invocation
     # of test_doctest. So we do our own thing and leave
     # sys.modules alone.
     # We also clear the linecache and zipimport cache