関連ワード:  python find occurrence of string in string    python find last occurrence of string in string    python find all occurrences of string in string    python find index of string in string    python find position of string in string    python find location of string in string    python find list of strings in string    python find part of string in string    python find string in string    python find string in string case insensitive  
結果 : python find occurrence of string in string