Fix use of 'is' operator for comparison

The 'is' operator is not meant to be used for comparisons. It currently working is an implementation detail of CPython.
CPython 3.8 has added a SyntaxWarning for this.

diff --git a/ext/inlinegettext.py b/ext/inlinegettext.py
index cf4ed5e4418cd6059f69164fbfc6899366dfecd7..6ff10dafb6a810feb952312f8c3f553d7943661d 100644 (file)
--- a/ext/inlinegettext.py
+++ b/ext/inlinegettext.py
@@ -32,7 +32,7 @@ class InlineGettext(Extension):
         paren_stack = 0
 
         for token in stream:
-            if token.type is not 'data':
+            if token.type != 'data':
                 yield token
                 continue