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python3系で正規表現を使わずに文字列の複数の文字を置き換えたいとき

Last updated at Posted at 2017-08-02

python3系で文字列の複数の文字を置き換えたいとき

使用する命令・関数・メソッド

  • dict.fromkeys()
  • str.maketrans()
  • str.translate()

サンプル

sample.py
lst = ['1', '2', '3']
delete_for_str = str.maketrans(dict.fromkeys(lst, "<ok>")) #第1引数: イテレータ, 第2引数: 置換後の文字列
oldstr = '1ho2ge3'
newstr = oldstr.translate(delete_for_str)
print(newstr)
#出力結果:
#<ok>ho<ok>ge<ok>
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