from itertools import *
# JavaScript で言う Array.prototype.find()的なやつだゾ
predicate = lambda tag: tag['Key'] == 'Name'
found = next(ifilter(predicate, list), None)
# null 判定
# == None で比較は良くないらしいゾ
if found is not None:
print ‘mitsuketa_zo’
# 後置ifもあるゾ
result = ‘mitsuketa_zo’ if found is not None else ‘nai_zo’
