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【Python初心者】住所から都道府県と市区町村を抜き出す(3行)。

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結論

都道府県
import re
#都道府県のみ
address = "東京都新宿区西新宿1-1-1"
matches = re.match('東京都|北海道|(?:京都|大阪)府|.{2,3}県' , address)
print(matches.group()) 
#--->東京都
import re
#区のみ
address = "東京都新宿区西新宿1-1-1"
ku_number = address.find('')
print(address[:ku_number+1])  #ない場合は空白が返される
#--->東京都新宿区
import re
#市のみ
address = "東京都八王子市横山町1-1"
shi_number = address.find('')
print(address[:shi_number+1])  #ない場合は空白が返される  #ない場合は空白が返される
#--->東京都八王子市

町村も同じく.find()で得ることができる。

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