# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1332453996 -3600
# Node ID f6bdbe66c23fcf7c56299b658bc71ba87d023741
# Parent  a9ce4a97ee01eaa30d39cbd8a49fa36c95125972
Removed request.flush usage where the method is not present. This is probably
only useful when trying to see exactly where the parser is failing.

diff -r a9ce4a97ee01 -r f6bdbe66c23f parsers/graphviz.py
--- a/parsers/graphviz.py	Wed Mar 07 00:49:10 2012 +0100
+++ b/parsers/graphviz.py	Thu Mar 22 23:06:36 2012 +0100
@@ -77,7 +77,10 @@
         page = request.page
         _ = request.getText
 
-        request.flush() # to identify error text
+        # NOTE: Flushing the request is not supported in 1.9.
+
+        if hasattr(request, "flush"):
+            request.flush() # to identify error text
 
         filter = self.FILTERS[0]
         format = 'png'