I recently encountered an error when trying to parse a javascript document with YUI DOC. YUI Doc is a Python application used at build time to generate API documentation for JavaScript code. The javascript file had a few non-standard characters that were causing YUI Doc to crash with the following error:

Traceback (most recent call last):
  File "C:\yuidoc\bin\yuidoc.py", line 104, in?    main()
  File "C:\yuidoc\bin\yuidoc.py", line 86, in main    opts.newext )
  File "C:\yuidoc\bin\yuidoc_highlight.py", line 82, in __init__    highlightDir(os.path.abspath(i))
  File "C:\yuidoc\bin\yuidoc_highlight.py", line 68, in highlightDir    highlightFile(path, i)
  File "C:\yuidoc\bin\yuidoc_highlight.py", line 57, in highlightFile    out.writelines(highlighted)
TypeError: writelines() argument must be a sequence of strings

The fix was rather simple. Edit yuidoc_highlight.py

change line 57