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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 sdk_normalize(filename):
 """ Normalize a path to strip out the SDK portion, normally so that it can be decided whether it is in a system path or not. """

    if filename.startswith('/Developer/SDKs/'):
        pathcomp = filename.split('/')
        del pathcomp[1:4]
        filename = '/'.join(pathcomp)
    return filename