Another fix in comments handling

2ece3ae4 · Igor Dejanovic · 4837409b · 2ece3ae4
Commit 2ece3ae4 authored Sep 01, 2014 by Igor Dejanovic
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__init__.py arpeggio/__init__.py +2 -1

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--- a/arpeggio/__init__.py
+++ b/arpeggio/__init__.py
@@ -906,7 +906,8 @@ class Parser(object):
        self.line_ends = []
        self.input = _input
        self.parser_model.clear_cache()
-        self.comments_model.clear_cache()
+        if self.comments_model:
+            self.comments_model.clear_cache()
        self.parse_tree = self._parse()

        # In debug mode export parse tree to dot file for