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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 dirsize_get(l_filesWithoutPath, **kwargs):
 """ Sample callback that determines a directory size. """


        str_path    = ""
        for k,v in kwargs.items():
            if k == 'path': str_path = v

        d_ret   = {}
        l_size  = []
        size    = 0
        for f in l_filesWithoutPath:
            str_f   = '%s/%s' % (str_path, f)
            if not os.path.islink(str_f):
                try:
                    size += os.path.getsize(str_f)
                except:
                    pass
        str_size    = pftree.sizeof_fmt(size)

        return {
            'status':           True,
            'diskUsage_raw':    size,
            'diskUsage_human':  str_size
        }