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Viewing changes to lib/common/util.py

  • Committer: mattgiuca
  • Date: 2008-03-15 07:49:26 UTC
  • Revision ID: svn-v3-trunk0:2b9c9e99-6f39-0410-b283-7f802c844ae2:trunk:701
Moved "open_exercise_file" from tutorialservice to util.
    Will be used by tutorial app as well.

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lib/common/util.py
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    else:
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        return tuple(splitpath)
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def open_exercise_file(exercisename):
 
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    """Given an exercise name, opens the corresponding XML file for reading.
 
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    Returns None if the exercise file was not found.
 
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    (For tutorials / worksheets).
 
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    """
 
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    # First normalise the path
 
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    exercisename = os.path.normpath(exercisename)
 
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    # Now if it begins with ".." or separator, then it's illegal
 
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    if exercisename.startswith("..") or exercisename.startswith(os.sep):
 
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        exercisefile = None
 
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    else:
 
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        exercisefile = os.path.join(conf.exercises_base, exercisename)
 
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    try:
 
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        return open(exercisefile)
 
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    except (TypeError, IOError):    # TypeError if exercisefile == None
 
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        return None
 
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# Initialise mime types library
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mimetypes.init()
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for (ext, mimetype) in conf.mimetypes.additional_mime_types.items():