diff --git a/pandoc-minted.py b/pandoc-minted.py
index 0564405..5ffc213 100644
--- a/pandoc-minted.py
+++ b/pandoc-minted.py
@@ -10,41 +10,43 @@ def unpack_code(value):
     """Unpack the body and language of a pandoc code element."""
     [[_, classes, attributes], contents] = value
 
-    language = classes[0] if len(classes) > 0 else 'text'
-    attributes = ', '.join('='.join(x) for x in attributes)
+    language = classes[0] if len(classes) > 0 else "text"
+    attributes = ", ".join("=".join(x) for x in attributes)
 
-    return {'contents': contents, 'language': language, 'attributes': attributes}
+    return {"contents": contents, "language": language, "attributes": attributes}
 
 
 def fragile(key, value, format, meta):
     """Make headers/frames fragile."""
-    if format != 'beamer':
+    if format != "beamer":
         return
 
-    if key == 'Header':
+    if key == "Header":
         level, meta, contents = value
         # Add the attribute
-        meta[1].append('fragile')
+        meta[1].append("fragile")
         return Header(level, meta, contents)
 
 
 def minted(key, value, format, meta):
     """Use minted for code in LaTeX."""
-    if format != 'latex' and format != 'beamer':
+    if format != "latex" and format != "beamer":
         return
 
-    if key == 'CodeBlock':
-        template = Template('\\begin{minted}[$attributes]{$language}\n$contents\n\end{minted}')
+    if key == "CodeBlock":
+        template = Template(
+            "\\begin{minted}[$attributes]{$language}\n$contents\n\end{minted}"
+        )
         Element = RawBlock
-    elif key == 'Code':
-        template = Template('\\mintinline[$attributes]{$language}{$contents}')
+    elif key == "Code":
+        template = Template("\\mintinline[$attributes]{$language}{$contents}")
         Element = RawInline
     else:
         return
 
     text = template.substitute(unpack_code(value))
-    return Element('latex', text)
+    return Element("latex", text)
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     toJSONFilters([fragile, minted])