Highlight 'yield from' statement

The 'yield from' statement was introduced in Python 3.3. Reported by
Elizabeth Myers.

CHANGES.txt

@@ -1,3 +1,8 @@
+Revision 3.3.6 (2013-11-18):
+
+    - Highlight 'yield from' statement introduced in Python 3.3. Reported by
+      Elizabeth Myers.
+
 Revision 3.3.5 (2013-08-31):
 
     - Highlight 'import', 'from' and 'as' as include statements.

README.rst

@@ -133,6 +133,7 @@ List of the contributors in alphabetical order:
 - Andrea Riciputi
 - Anton Butanaev
 - Caleb Adamantine
+- Elizabeth Myers
 - Jeroen Ruigrok van der Werven
 - John Eikenberry
 - Marc Weber

syntax/python.vim

@@ -2,9 +2,9 @@
 " Language:     Python
 " Maintainer:   Dmitry Vasiliev <dima at hlabs dot org>
 " URL:          https://github.com/hdima/python-syntax
-" Last Change:  2013-08-31
+" Last Change:  2013-11-18
 " Filenames:    *.py
-" Version:      3.3.5
+" Version:      3.3.6
 "
 " Based on python.vim (from Vim 6.1 distribution)
 " by Neil Schemenauer <nas at python dot ca>
@@ -25,6 +25,7 @@
 "   Andrea Riciputi
 "   Anton Butanaev
 "   Caleb Adamantine
+"   Elizabeth Myers
 "   Jeroen Ruigrok van der Werven
 "   John Eikenberry
 "   Marc Weber
@@ -148,15 +149,18 @@ syn keyword pythonStatement     break continue del
 syn keyword pythonStatement     exec return
 syn keyword pythonStatement     pass raise
 syn keyword pythonStatement     global assert
-syn keyword pythonStatement     lambda yield
+syn keyword pythonStatement     lambda
 syn keyword pythonStatement     with
 syn keyword pythonStatement     def class nextgroup=pythonFunction skipwhite
 syn keyword pythonRepeat        for while
 syn keyword pythonConditional   if elif else
-syn keyword pythonImport        import from
+syn keyword pythonImport        import
 syn keyword pythonException     try except finally
 syn keyword pythonOperator      and in is not or
 
+syn match pythonStatement   "\<yield\>" display
+syn match pythonImport      "\<from\>" display
+
 if s:Python2Syntax()
   if !s:Enabled("g:python_print_as_function")
     syn keyword pythonStatement  print
@@ -165,6 +169,7 @@ if s:Python2Syntax()
   syn match   pythonFunction    "[a-zA-Z_][a-zA-Z0-9_]*" display contained
 else
   syn keyword pythonStatement   as nonlocal None
+  syn match   pythonStatement   "\<yield\s\+from\>" display
   syn keyword pythonBoolean     True False
   syn match   pythonFunction    "\%([^[:cntrl:][:space:][:punct:][:digit:]]\|_\)\%([^[:cntrl:][:punct:][:space:]]\|_\)*" display contained
 endif

test.py

@@ -10,6 +10,9 @@
 
 with break continue del exec return pass print raise global assert lambda yield
 for while if elif else import from as try except finally and in is not or
+
+yield from
+
 def functionname
 class Classname
 def функция