add 'async' and 'await' keywords. Also add the '@' operator.

PythonImproved.YAML-tmLanguage

@@ -73,14 +73,14 @@ patterns:
   match: \b(None|True|False|Ellipsis|NotImplemented)\b
 
 - name: storage.modifier.declaration.python
-  match: \b(global|nonlocal)\b
+  match: \b(global|nonlocal|async)\b
 
 - name: keyword.control.import.python
   match: \b(?:(import|from|as))\b
 
 - comment: keywords that delimit flow blocks or alter flow from within a block
   name: keyword.control.flow.python
-  match: \b(elif|else|except|finally|for|if|try|while|with|break|continue|pass|raise|return|yield)\b
+  match: \b(elif|else|except|finally|for|if|try|while|with|break|continue|pass|raise|return|yield|await)\b
 
 - comment: keyword operators that evaluate to True or False
   name: keyword.operator.logical.python
@@ -97,10 +97,10 @@ patterns:
   match: <\=|>\=|\=\=|<|>|\!\=
 
 - name: keyword.operator.assignment.augmented.python
-  match: \+\=|-\=|\*\=|/\=|//\=|%\=|&\=|\|\=|\^\=|>>\=|<<\=|\*\*\=
+  match: \+\=|-\=|\*\=|/\=|//\=|%\=|&\=|\|\=|\^\=|>>\=|<<\=|\*\*\=|@\=
 
 - name: keyword.operator.arithmetic.python
-  match: \+|\-|\*|\*\*|/|//|%|<<|>>|&|\||\^|~
+  match: \+|\-|\*|\*\*|/|//|%|<<|>>|&|\||\^|~|(?!^)@
 
 - name: keyword.operator.assignment.python
   match: \=
@@ -622,7 +622,7 @@ repository:
 
   illegal_names:
     name: invalid.illegal.name.python
-    match: \b(and|as|assert|break|class|continue|def|del|elif|else|except|exec|finally|for|from|global|if|import|in|is|lambda|nonlocal|not|or|pass|print|raise|return|try|while|with|yield)\b
+    match: \b(and|as|assert|break|class|continue|def|del|elif|else|except|exec|finally|for|from|global|if|import|in|is|lambda|nonlocal|not|or|pass|print|raise|return|try|while|with|yield|async|await)\b
 
   keyword_arguments:
     begin: \b([a-zA-Z_][a-zA-Z_0-9]*)\s*(=)(?!=)

PythonImproved.tmLanguage

@@ -181,7 +181,7 @@
 		</dict>
 		<dict>
 			<key>match</key>
-			<string>\b(global|nonlocal)\b</string>
+			<string>\b(global|nonlocal|async)\b</string>
 			<key>name</key>
 			<string>storage.modifier.declaration.python</string>
 		</dict>
@@ -195,7 +195,7 @@
 			<key>comment</key>
 			<string>keywords that delimit flow blocks or alter flow from within a block</string>
 			<key>match</key>
-			<string>\b(elif|else|except|finally|for|if|try|while|with|break|continue|pass|raise|return|yield)\b</string>
+			<string>\b(elif|else|except|finally|for|if|try|while|with|break|continue|pass|raise|return|yield|await)\b</string>
 			<key>name</key>
 			<string>keyword.control.flow.python</string>
 		</dict>
@@ -229,13 +229,13 @@
 		</dict>
 		<dict>
 			<key>match</key>
-			<string>\+\=|-\=|\*\=|/\=|//\=|%\=|&amp;\=|\|\=|\^\=|&gt;&gt;\=|&lt;&lt;\=|\*\*\=</string>
+			<string>\+\=|-\=|\*\=|/\=|//\=|%\=|&amp;\=|\|\=|\^\=|&gt;&gt;\=|&lt;&lt;\=|\*\*\=|@\=</string>
 			<key>name</key>
 			<string>keyword.operator.assignment.augmented.python</string>
 		</dict>
 		<dict>
 			<key>match</key>
-			<string>\+|\-|\*|\*\*|/|//|%|&lt;&lt;|&gt;&gt;|&amp;|\||\^|~</string>
+			<string>\+|\-|\*|\*\*|/|//|%|&lt;&lt;|&gt;&gt;|&amp;|\||\^|~|(?!^)@</string>
 			<key>name</key>
 			<string>keyword.operator.arithmetic.python</string>
 		</dict>
@@ -1858,7 +1858,7 @@
 		<key>illegal_names</key>
 		<dict>
 			<key>match</key>
-			<string>\b(and|as|assert|break|class|continue|def|del|elif|else|except|exec|finally|for|from|global|if|import|in|is|lambda|nonlocal|not|or|pass|print|raise|return|try|while|with|yield)\b</string>
+			<string>\b(and|as|assert|break|class|continue|def|del|elif|else|except|exec|finally|for|from|global|if|import|in|is|lambda|nonlocal|not|or|pass|print|raise|return|try|while|with|yield|async|await)\b</string>
 			<key>name</key>
 			<string>invalid.illegal.name.python</string>
 		</dict>