Indent body of _EXAMPLE_RE for readability. _IS_BLANK_OR_COMMENT makes

more sense as a callable.

Lib/doctest.py

@@ -601,7 +601,7 @@ class Parser:
                      .*$\n?       # But any other line
                   )*)
         ''', re.MULTILINE | re.VERBOSE)
-    _IS_BLANK_OR_COMMENT = re.compile('^[ ]*(#.*)?$')
+    _IS_BLANK_OR_COMMENT = re.compile('^[ ]*(#.*)?$').match
 
     def get_examples(self):
         """
@@ -638,7 +638,7 @@ class Parser:
 
             # Extract source/want from the regexp match.
             (source, want) = self._parse_example(m, lineno)
-            if self._IS_BLANK_OR_COMMENT.match(source):
+            if self._IS_BLANK_OR_COMMENT(source):
                 continue
             examples.append( Example(source, want, lineno) )