From ca6a0e7d735746ca947f99f590b19ad1121b9800 Mon Sep 17 00:00:00 2001
From: Waylan Limberg <waylan@gmail.com>
Date: Fri, 29 Oct 2010 22:00:28 -0400
Subject: Improved previous commit. isBlockLevel is now more foolproof and will
 no longer crash on other non-string ElemetTree tags (like processing
 instructions).

---
 .gitignore       | 1 +
 markdown/util.py | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index f921269..a00737a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@ build/*
 dist/*
 tmp/*
 MANIFEST
+.venv
diff --git a/markdown/util.py b/markdown/util.py
index fa50e83..9ae523f 100644
--- a/markdown/util.py
+++ b/markdown/util.py
@@ -51,9 +51,13 @@ AUXILIARY GLOBAL FUNCTIONS
 
 def isBlockLevel(tag):
     """Check if the tag is a block level HTML tag."""
+    if isinstance(tag, basestring):
+        return BLOCK_LEVEL_ELEMENTS.match(tag)
+    # Some ElementTree tags are not strings, so return True for Comments
+    # and False for anything else.
     if tag is etree.Comment:
         return True
-    return BLOCK_LEVEL_ELEMENTS.match(tag)
+    return False
 
 """
 MISC AUXILIARY CLASSES
-- 
cgit v1.2.3