- #for $book in $books
- #if $book.series != $series
- #if $series is not None
- </optgroup>
- #end if
- #set $series = $book.series
- <optgroup label="#slurp
- #if $book.series
+ #for $author in $sorted($books_by_author)
+ #set $books = $books_by_author[$author]
+ #for $book in $books
+ #if $book.series != $series
+ #if $series is not None
+ </optgroup>
+ #end if
+ #set $series = $book.series
+ <optgroup label="#slurp
+$author — #slurp
+ #if $book.series