##parameters=key=None
# $Id: get_csv_names.py 2282 2007-09-27 16:52:41Z joachim $
"""
Return the sessions as an vocabulary

"""
files = context.waeup_tool.get_csv_filenames()
if key is None:
    l = [(f[:-4],f) for f in files]
    l.sort(cmp=lambda x,y: cmp(x[0].lower(), y[0].lower()))
    return l

return files[files.index("%s.csv" % key)]