Fix class attribute name

jupyter · Dec 30, 2024 · d0b336d · d0b336d
1 parent eeff516
commit d0b336d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/nbconvert/filters/markdown_mistune.py b/nbconvert/filters/markdown_mistune.py
@@ -32,7 +32,7 @@
     )
 
     MISTUNE_V3 = True
-    MISTUNE_V3_ATX = "atx_heading" in BlockParser.SPECIFICATIONS
+    MISTUNE_V3_ATX = "atx_heading" in BlockParser.SPECIFICATION
 
 except ImportError:  # for Mistune >= 2.0
     import re