Highlight 'yield from' statement

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

CHANGES.txt

@@ -1,3 +1,33 @@
+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.
+      Patch by pydave at GitHub.
+    - Added new option 'python_highlight_file_headers_as_comments' (disabled by
+      default) to highlight shebang and coding file headers as comments.
+      Proposed by pydave at GitHub.
+
+Revision 3.3.4 (2013-08-11):
+
+    - Highlight True and False as booleans. Patch by Yuri Habrusiev.
+
+Revision 3.3.3 (2013-06-02):
+
+   - More lightweight syntax reloading. Patch by Will Gray.
+
+Revision 3.3.2 (2013-06-01):
+
+   - Fixed behaviour of b:python_version_2 variable. Reported by Will Gray.
+
+Revision 3.3.1 (2013-05-12):
+
+   - The script was moved to its own repository at
+     https://github.com/hdima/python-syntax
+
 Revision 3.3.0 (2013-03-10):
 
     - Merge Python 2 and Python 3 script versions into the single python.vim

README.rst

@@ -117,6 +117,8 @@ Options used by the script
   Highlight doc-tests
 ``python_print_as_function``
   Highlight ``print`` statement as function for Python 2
+``python_highlight_file_headers_as_comments``
+  Highlight shebang and coding headers as comments
 ``python_highlight_all``
   Enable all the options above. *NOTE: This option don't override any
   previously set options*
@@ -126,10 +128,16 @@ Options used by the script
 Contributors
 ------------
 
-- Jeroen Ruigrok van der Werven
-- Pedro Algarvio
-- John Eikenberry
-- Caleb Adamantine
+List of the contributors in alphabetical order:
+
 - Andrea Riciputi
 - Anton Butanaev
+- Caleb Adamantine
+- Elizabeth Myers
+- Jeroen Ruigrok van der Werven
+- John Eikenberry
 - Marc Weber
+- Pedro Algarvio
+- pydave at GitHub
+- Will Gray
+- Yuri Habrusiev

TODO.txt

@@ -1,6 +1,9 @@
 Now
 ===
 
+- It seems python.vim doesn't highlight special characters inside strings by
+  default but only when it reloaded?
+
 - Add support for slice syntax:
   http://img155.imageshack.us/img155/7767/screenshotgs.png
 

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:  2013-05-12
+" Last Change:  2013-11-18
 " Filenames:    *.py
-" Version:      3.3.1
+" Version:      3.3.6
 "
 " Based on python.vim (from Vim 6.1 distribution)
 " by Neil Schemenauer <nas at python dot ca>
@@ -20,13 +20,19 @@
 " Contributors
 " ============
 "
-"   Jeroen Ruigrok van der Werven
-"   Pedro Algarvio
-"   John Eikenberry
-"   Caleb Adamantine
+" List of the contributors in alphabetical order:
+"
 "   Andrea Riciputi
 "   Anton Butanaev
+"   Caleb Adamantine
+"   Elizabeth Myers
+"   Jeroen Ruigrok van der Werven
+"   John Eikenberry
 "   Marc Weber
+"   Pedro Algarvio
+"   pydave at GitHub
+"   Will Gray
+"   Yuri Habrusiev
 "
 " Options
 " =======
@@ -68,6 +74,9 @@
 "    python_highlight_doctests              Highlight doc-tests
 "    python_print_as_function               Highlight 'print' statement as
 "                                           function for Python 2
+"    python_highlight_file_headers_as_comments
+"                                           Highlight shebang and coding
+"                                           headers as comments
 "
 "    python_highlight_all                   Enable all the options above
 "                                           NOTE: This option don't override
@@ -87,8 +96,8 @@ endif
 "
 " Commands
 "
-command! -buffer Python2Syntax let b:python_version_2 = 1 | if exists("g:syntax_on") | syn off | endif | syn enable
-command! -buffer Python3Syntax let b:python_version_2 = 0 | if exists("g:syntax_on") | syn off | endif | syn enable
+command! -buffer Python2Syntax let b:python_version_2 = 1 | let &syntax=&syntax
+command! -buffer Python3Syntax let b:python_version_2 = 0 | let &syntax=&syntax
 
 " Enable option if it's not defined
 function! s:EnableByDefault(name)
@@ -99,12 +108,15 @@ endfunction
 
 " Check if option is enabled
 function! s:Enabled(name)
-  return exists(a:name) && {a:name} != 0
+  return exists(a:name) && {a:name}
 endfunction
 
 " Is it Python 2 syntax?
 function! s:Python2Syntax()
-  return s:Enabled("b:python_version_2") || s:Enabled("g:python_version_2")
+  if exists("b:python_version_2")
+      return b:python_version_2
+  endif
+  return s:Enabled("g:python_version_2")
 endfunction
 
 "
@@ -137,23 +149,28 @@ 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 pythonPreCondit     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
   endif
-  syn keyword pythonPreCondit   as
+  syn keyword pythonImport      as
   syn match   pythonFunction    "[a-zA-Z_][a-zA-Z0-9_]*" display contained
 else
-  syn keyword pythonStatement   as nonlocal False None True
+  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
 
@@ -170,8 +187,10 @@ syn match   pythonDot        "\." display containedin=pythonDottedName
 "
 
 syn match   pythonComment	"#.*$" display contains=pythonTodo,@Spell
+if !s:Enabled("g:python_highlight_file_headers_as_comments")
   syn match   pythonRun		"\%^#!.*$"
   syn match   pythonCoding	"\%^.*\%(\n.*\)\?#.*coding[:=]\s*[0-9A-Za-z-_.]\+.*$"
+endif
 syn keyword pythonTodo		TODO FIXME XXX contained
 
 "
@@ -364,7 +383,8 @@ syn match   pythonFloat		"\<\d\+\.\d*\%([eE][+-]\=\d\+\)\=[jJ]\=" display
 
 if s:Enabled("g:python_highlight_builtin_objs")
   if s:Python2Syntax()
-    syn keyword pythonBuiltinObj	True False None
+    syn keyword pythonBuiltinObj	None
+    syn keyword pythonBoolean		True False
   endif
   syn keyword pythonBuiltinObj	Ellipsis NotImplemented
   syn keyword pythonBuiltinObj	__debug__ __doc__ __file__ __name__ __package__
@@ -460,7 +480,7 @@ if version >= 508 || !exists("did_python_syn_inits")
   endif
 
   HiLink pythonStatement        Statement
-  HiLink pythonPreCondit        Statement
+  HiLink pythonImport           Include
   HiLink pythonFunction         Function
   HiLink pythonConditional      Conditional
   HiLink pythonRepeat           Repeat
@@ -472,8 +492,10 @@ if version >= 508 || !exists("did_python_syn_inits")
   HiLink pythonDot              Normal
 
   HiLink pythonComment          Comment
+  if !s:Enabled("g:python_highlight_file_headers_as_comments")
     HiLink pythonCoding           Special
     HiLink pythonRun              Special
+  endif
   HiLink pythonTodo             Todo
 
   HiLink pythonError            Error
@@ -517,6 +539,8 @@ if version >= 508 || !exists("did_python_syn_inits")
   HiLink pythonHexError         Error
   HiLink pythonBinError         Error
 
+  HiLink pythonBoolean          Boolean
+
   HiLink pythonBuiltinObj       Structure
   HiLink pythonBuiltinFunc      Function
 

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