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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _sibpath(path, sibling):
 """ Return the path to a sibling of a file in the filesystem. This is useful in conjunction with the special C{__file__} attribute that Python provides for modules, so modules can load associated resource files. (Stolen from twisted.python.util) """

    return os.path.join(os.path.dirname(os.path.abspath(path)), sibling)