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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 strip_accents(s, encoding= 'utf-8'):
 """Strip characters with diacritics and return a flat ascii representation"""

    if sys.version < '3':
        if isinstance(s,unicode):
           return unicodedata.normalize('NFKD', s).encode('ASCII', 'ignore')
        else:
           return unicodedata.normalize('NFKD', unicode(s,encoding)).encode('ASCII', 'ignore')
    else:
        if isinstance(s,bytes): s = str(s,encoding)
        return str(unicodedata.normalize('NFKD', s).encode('ASCII', 'ignore'),'ascii')