fix: set utf-8 encoding for Python

lib/grammars/python.coffee

@@ -1,27 +1,41 @@
 GrammarUtils = require '../grammar-utils'
 
+# https://github.com/atom-community/atom-script/issues/214#issuecomment-418766763
+encodingSet = false
+setEncoding: ->
+  if (!encodingSet)
+    process.env.PYTHONIOENCODING = 'utf-8'
+    encodingSet = true
+  return
+
 exports.Python =
   'Selection Based':
     command: 'python'
     args: (context) ->
+      setEncoding()
       code = context.getCode()
       tmpFile = GrammarUtils.createTempFileWithCode(code)
       return ['-u', tmpFile]
 
   'File Based':
     command: 'python'
-    args: ({filepath}) -> ['-u', filepath]
+    args: ({filepath}) ->
+      setEncoding()
+      return ['-u', filepath]
 
 exports.MagicPython = exports.Python
 
 exports.Sage =
   'Selection Based':
     command: 'sage'
     args: (context) ->
+      setEncoding()
       code = context.getCode()
       tmpFile = GrammarUtils.createTempFileWithCode(code)
       return [tmpFile]
 
   'File Based':
     command: 'sage'
-    args: ({filepath}) -> [filepath]
+    args: ({filepath}) ->
+      setEncoding()
+      return [filepath]