I have run into a problem in the rewritten mudela-book in lilypond
1.2.3.  I get the following stack trace:

[droundy@ludwig test]$ mudela-book fun.tex
mudela-book (GNU LilyPond) 1.2.3
Traceback (innermost last):
  File "/usr/local/bin/mudela-book", line 841, in ?
    main()
  File "/usr/local/bin/mudela-book", line 828, in main
    chunks = transform_input_file (input_filename, my_outname)
  File "/usr/local/bin/mudela-book", line 568, in transform_input_file
    chunks = read_doc_file (in_filename)
  File "/usr/local/bin/mudela-book", line 290, in read_doc_file
    ch = func (c[1])
  File "/usr/local/bin/mudela-book", line 256, in find_input_chunks
    return find_inclusion_chunks (get_re ('input'), '', str)
  File "/usr/local/bin/mudela-book", line 246, in find_inclusion_chunks
    chunks = chunks + read_doc_file (m.group (1))
  File "/usr/local/bin/mudela-book", line 270, in read_doc_file
    raise IOError
IOError

This is running mudela-book on a test file, which actually has no mudela
in it.  I got the same error earlier, and took out the mudela to try to
isolate the problem.  I also tried using old-mudela-book (in the scripts
directory), and it seems to work fine.  I'm afraid I'm at a loss as to
what the problem is.  My python is pretty pathetic.  :(  

David Roundy

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