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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 scrubFilename(filename):
    '''
    Scrub the filename to a relative path for all packages in our scrub list.
    '''
    global _PACKAGE_SCRUB_LIST
    for package in _PACKAGE_SCRUB_LIST:
        i = filename.rfind(package)
        if i > -1:
            return filename[i:]

    return filename